Ok, I'm going to go ahead and throw these frameworks out there to see what you guys think:
1) Vassell for DDR + Keon Ellis
2) Vassell + Sochan for DDR + Keon Ellis + pick swap
Sacramento gets younger (and dumber), Spurs get salary relief (DDR is only guaranteed for 10 million next season) and a 3&D young vet they can use. Option 2 adds Sochan and gets a pick swap.
Both of these are general frameworks, give or take an asset. To be fair I don't think Spurs do it, they're too enamored with their own players, but I probably would.