Good topic. 66 points is the max. These would be my guesses:
Maher: 5 (10, capped at 5)
Farley: 10
Rychart: 10 (could be a 9, but I doubt it)
Rees: 4
Nash: 6
Holmes: 5 (7, capped at 5)
Forman: 5
BWilliams: 6?
Ng: 4
Total: 55.
One spot to fill, and 11 points to do it in, so unless my Brad Williams or Paul Rees estimates are out, then we have no restriction. Also, Ng is an assumption. And Nash's 6 is a bit of a guess, but it's what I've heard.
The Sixers will fare well under the cap as long as our top player is a 5, and newcomers are retained to keep them at 5 (Holmes and Forman).