Do you get into 5th alot with the 33s and 4.10s? That is just about the same gearing as 4.56 and 35s and you have the same engine as me so it's a pretty good comparison...
It'll be better than 3.90/4.10s, but not as peppy as the 5.29s. Lol, if they're cheap enough, and worth it to you, just get them and run 'em til you can get the 5.29s back. You may decide you like them for the highway running aspect. Save a little fuel, save a little earth, right?
I travel a lot in my truck, so I'm sticking to the 3rz and 4.10s and 33s. When I get new tires and wheels, I will be doing 4.88s and 35s.