With RIP being 3 years younger than Ray, wouldn't it be ideal if RIP joined Boston to take on either the Ginobli 6th man role or even Starter next year.
Ray might be in excellent shape, but I could see RIP/Ray making a great twosome taking turns at SG
As for Moon, only if we've ran out of better options.
And Powe is he's healthy. I would do this trade -
Powe and Parker for Erden Luke and Bradley