You want to use him as realistic as possible for now ??
Well I think you need some rapid changes in his athleticism, jumping, quickness, speed down by 15-20.
Things like stealing and blocking down by 5-10.
His shot is surely not the same, -5 on FG.
The other things, like off and def. aware, and all the stuff that bases on experience should be -1-5 cuz hey he is just a lil bit too old
