Thanks for the help guys!
I stopped by the Les Schwab near where I work (just off of Bel-Red Road in Bellevue) to get a 'ballpark' estimate, and they confirmed that they've done these (19.5's and 'G' tires) a few times, weren't sure about match-mounting, but could do a 'road force' for me...they were also able to speak knowledgably about offset and backspacing, so I feel pretty good about using them to get this done.
The estimate we looked at was with a $411 'traction' tire as sort of a 'baseline' cost-adder, and came up with a $4023.00 total for 5--Vision 81's, 245-70R19.5's,(which they said will be close, but should fit fine), mounted, balanced and roadforced, lug nuts, and valve stems, etc...so, apprx $800 per corner--and could have this done in a few days.
So, next is to choose a tire....I don't mind rough-riding (per Bill's post, it comes with the territory), and I don't mind the noise, but I DO mind 'wandering'. I'd like something that will track as well as a 'traction' tire possibly can.
any thoughts?
tom b.