Just figure it's going to run you around $900 (parts and labor) to get your axles regeared. Also, it's a good time to consider, since your differential will be apart, getting lockers installed when you regear. But if you are like me and can't afford lockers right away, then go for just the gears.
How long would it take you to get $900+ for the gears? That should be your deciding factor. If it's another year (God forbid), then yeah, maybe you go ahead and just install your lift and 35s and live with it for now. If it'll be only another month, then maybe just wait. But it's really your call.