"I got it one piece at a time..."
The next bit of puzzle found me today. I was in a Good Samaritan store today and found some atv tires under a sink. Asked the lady how much and she had no clue. She called the guy who does pricing and he says $10 a tire. So $40 and they came home with me. 25x8 fronts and 25x10 rears on 12" rims, which I now need to look for. The tread seems pretty good too. Good enough for me anyways.
Oh, and scratch the utility tire hubs, I found a place to get high speed bearing hubs for a reasonable price.