Exactly, VdG - give away 17000 pounds from the V-22 and it is going to get real quiet real soon.
You could presumably give away most of that fuel in a recovery-type refuelling over the ship, but that doesn't extend your range all that much. And the V-22's payload-range relationship is better than a helicopter but distinctly un-exciting compared to a fixed-wing.
And 16 F-35B loads of fuel is (according to my calculator) 54,000 pounds of gas for each of those four Ospreys supplying the forward base. Good luck with that.