This is looking great. You have the same (or very similar) set-up as I have planned. So, I appreciate you sharing your experiences. I have already learned a few things to plan for. I am on the lookout for a great deal on pizza cutters (255/85/16) to put on the stock split 3 spokes. As for the lift, I plan on the Toytec Ultimate, likely with Superflex and long travel Bilsteins in back.
What shocks and bumpstops are you using in rear?
Regarding the Savage rear bumper; that was my first mod. I specifically chose the Savage bumper for exactly the reason you ran into with tire rubbing on the factory bumper. I am hoping the curved lower tube just behind the tire gives that little bit of extra clearance for the tire. By the way, the Savage bumper is great. In hindsight, I wish I would have sprung for the swing-away tire carrier, but just couldn't get myself to spend the $$$.
By the way, I was successful at selling the factory rear bumper on Craigslist Denver for $50. I had some dents, but pretty free of rust, unlike many others around here.