If we decide to play in the corner there are several other option instead of the 4-5
1. The 3-3 and the 3-4: I don't think playing territorially is the way to go. Black gets really nice moves to press us down and build influence.
2. The 3-6 and 5-5: I've played the 5-5 before and don't think it can compete with the 4-5 and I have no idea what to do with the 3-6.
3. The 3-5: It also favors influence while neglecting the corner but it is not directed to the center but towards a side. What I mean is that we probably won’t want the play the taisha because of the tengen as a ladder breaker or any other squeeze play because they tend to start running fights. This leaves us with the keima press joseki. We would be building a wall toward the side so we should probably extend a some point, but that would mean we are building a own moyo which seems bad to me because black can gain a lot by invading.
4. The 4-4: The 4-4 is the only influence play left. I don't think ni-ren-sai would work well, because we cannot go for san-ren-sai and the 4-5 opens up a lot of option that we don't get with a hoshi. On the other side I am leaning really hard at playing cross positions at the moment, and in my experience that works better with symmetrical plays. So I was thinking about a 44 point as the 4th play.
$$cm1 With the game going something like this
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . 5 . . . . . |
$$ | . . . 3 . . . . . , . . . . . 4 . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . 1 . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 2 . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$cm1 With the game going something like this
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . 5 . . . . . |
$$ | . . . 3 . . . . . , . . . . . 4 . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . 1 . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 2 . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Now applying the 123 principal, we could play the 44 point first, see what black does with their 3rd move and then choose a favorable position for the 4-5. My main reason why I don't nominate the 44 is that I want to give my Captain several options, and I think my other Teammate would nominate the 44.
5. Playing in the middle: Yes, I also thought briefly about this. I did not like it because the game would start to degenerate into a ddk slaughter fest that nobody wants to watch

In addition I don't know any decent way to approach the tengen stone.
The move I'm nomination is the
4-6. If they invade at the 4-4 we can double approach and if they try the 3-4 maybe this?
$$Bc
$$ ------------------
$$ | . . . . . . . . .
$$ | . . . . . 6 . . .
$$ | . . . 1 . . . . .
$$ | . . 5 , . 2 . . .
$$ | . . 3 4 . . . . .
$$ | . . . O . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . , . . . . .
- Click Here To Show Diagram Code
[go]$$Bc
$$ ------------------
$$ | . . . . . . . . .
$$ | . . . . . 6 . . .
$$ | . . . 1 . . . . .
$$ | . . 5 , . 2 . . .
$$ | . . 3 4 . . . . .
$$ | . . . O . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . , . . . . .[/go]
$$Bc
$$ ------------------
$$ | . . . . . . . . .
$$ | . . 3 . . . . . .
$$ | . . 2 1 . 5 . . .
$$ | . . 4 , . . . . .
$$ | . . . . . . . . .
$$ | . . . O . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . , . . . . .
- Click Here To Show Diagram Code
[go]$$Bc
$$ ------------------
$$ | . . . . . . . . .
$$ | . . 3 . . . . . .
$$ | . . 2 1 . 5 . . .
$$ | . . 4 , . . . . .
$$ | . . . . . . . . .
$$ | . . . O . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . . . . . . .
$$ | . . . , . . . . .[/go]
If I write too much just say so, but we are a team and I want everybody to be on the same page

Also, I think this game will be epic