Gasol if absolutely the only move if Raptors
are really that determined. At least he's young, so you get a lot of time to figure things out. I'd still not make a move but making a move for Gasol is 100X better than making a move for older fragile center.
Gasol is also the best on that list, and the most versatile. Good offense, very good passing, great D. Very little to dislike there. Right now there's only Howard I'd take over him out of pure 5s.