Spend a lot of money..... I did some digging last year when I got mine on the road and the cheapest I found was $200 a tire and that was a Chinese made tire. I eventually found an American made tire that was $260 a tire, and it was local. Now $275X6=$1650 just in tires. Now add tubes at $40 each and the mounting....And maybe painting the wheels and your probably going to spend more putting tires on than you did buying the truck.
If they are in usable shape just run them. I ended up pulling the one off that was bad and I have been running the rim only on the inside so I only have one tire on the ground on the left rear. I did find a guy on Craigslist with some used ones and I have two good ones to use. When I do a restore I will purchase new ones I think!
