Rear tire size is 255/50/17. I don't remember the wheel offset, if any. They just barely clear the bedside (by like 1/4") so I will probably kick them out about 1" or so with spacers. I have to wait until I put the rear fenders back on to determine that.
Here are a couple more steering wheel pics.
I still have a bit of grinding on both parts before I can weld them together.