I'd be satisfied to see a front line of Bosh, Tyrus Thomas, and Gallo. They would be athletic enough, fit D'Antoni's style, and be balanced enough offensively and defensively to work. There might be some match up problems, but Rome wasn't built in a day. When Curry comes off the cap we could possibly look to add a bigger bruiser type for some situations.
I'm less sure about Lee, Tyrus Thomas and Gallo. Bosh and Tyrus both are undersized as Cs, but together they are pretty good C/PF combo size wise, on the boards, shot blocking etc... Lee gives you so little defensively, even with TT I think it may not work. It would be WAAAAY better than having Jeffries, but not huge.