I don't think it is even possible to get that much for Jamal not to talk of getting more. Teams aren't lining up to trade a 25 year old 18/11/3/2 Center for a 33 year old scoring SG.
Jamal has more value to the team if people believe his bench creating an scoring is a necessity than he does trade value. Jamal getting a good big man is probably above his trade value already, let alone getting more.
I don't see Boston biting at all on that trade, the other teams I could see the reasoning, but Boston seems to like Green.
I don't see the Clippers biting either, not because of Jamal for Hawes but because giving the Grizzlies Jeff Green and Jamal Crawford for Ed Davis and first round pick is very, very generous. The Grizz look like the biggest winner.
If Charlotte bought out Ben Gordon and he agreed to come here, then a trade like this makes everyone happy as Ben Gordon can take on that bench scoring guard role. He's still capable despite not playing in Charlotte.