Background:
So I've done a good bit of research and I've more or less settled on a lift kit. I'm looking at the Rough Country 6.5 inch long arm kit. It's going to be a little while until I can afford everything that I'll need (SYE driveshaft, kit, tires, etc) but right now I'm trying to pick out some new wheels and tires.
I'm looking to go for 35 inch tires but I might play it safe and save myself some fender trimming by going with 33's to start (mind not made up) Note: I currently have a 29 spline Chrysler 8.25 out back but I think I will probably post-lift pre-gearing upgrade to a Ford 8.8. I also have ACOS in the front which give me a minimum of 1.75 inches of lift (don't know if they'll stay post lift)
My goal for the build is to have a really well rounded rig that can play on the rocks, in the mud and tackle most trails.

My questions are as follows:
What width wheels should I be looking to go with for a lift of this size?
What associated backspacing should I be looking for? Rough Country's site says 4.5 but does the tire width change that?
How much trimming will be involved with 35's (or 33's)? And do you suggest doing the fender trimming myself or paying someone to do a clean professional job? (I'm 90% sure I won't) and if so, what kind of costs should I expect?

** If anyone knows of a good offroad/4x4 shop in the Philly, PA area let me know. The place I normally do business with wanted to charge me with 24 hours of labor (85 per hour) to do the lift which is just about 3 times what the manufacturers website said and they quoted 1000 per axle to re-gear my axles up to 4.56. Those prices seem a waay high to me and that put a bad taste in my mouth about bringing my business there.

**** I also would be willing to buy the lift kit from any business affiliated with or a member of XJ Talk if they can beat the MSRP on Rough Country's website.