If I understand you right, you think a mid range suspension(probably 2-4k $) would survive the long days on the road. I know alot of Certified Pipeline welders that would build the roll cage. I think if they can weld pipe good enough to hold thousands of psi that it should be good enough for the cage. Any suggestions on specific tire(brand & size)? I've read alot of people run winter tires?
I'm glad there are others out there that don't think my idea is completly insane.