Re: tire size???
I ran LT235/75R15s on stock rims with some rubbing at full articulation (I removed the sway-bar and bumpstops completely), with springs that are in good shape. You wouldn't have a problem at all on the street.
I just put some 31x10.50s on with the rims that were on my Jeep (15x7 or 15x8?). I added 1" lift shackles that I made, and pounded the ribs inside the front wheel well to stop rubbing on the street at full lock.
I'm moving the rear springs to the front and putting CJ springs in the rear. That will create enough room for the tires.
'77 CJ5 Fozzy Locker
20 degree RTI 1250
'87 Samurai Stock (for now)