Tires are important so I'd make sure you leave enough room in the budget for good tires.
For the lift, consider either ADF spacers with Energy Suspension bump stops or adjustable Bils for the front. Blocks or shackles for the rear. Make sure you factor in adjustable cam bolts and a front end alignment too.
For wheel spacers, go with these guys: Wheel Adapters, Wheel Spacers, Hub Centric Rings | Motorsport Tech
I just did a quick search on Discount Tire's web site for 265/70/17. Tires in your price range that you might consider:
BFG Rugged Terrain
Yokohama Geolander A/T-S
Bridgestone Dueler AT Revo 2
Pirelli Scorpion ATR
BFG AT KO
Hankook Dynapro MT
Or Goodyear Wrangler Authority tires from Walmart.