Well after another look at the wheels n tires, I was wrong, I do have 7.00 x 20's all around. The rears are 10 lugs with the 4.75 center, and the fronts are 5 lugs with 4.80 centers (?) ( I was using verniers, so it could have been 4.75 as well.
For now I will most likely just use the 8.25 x 20's..
Any tips for replacing the rubber on the wheels ? I was told that in my state ( ma ) that shops can no longer legelly mount the split ring rims..(?) I am still investigating ..... I may just try it myself..
Thanks again