Doubt I'll get any interest, but I'm going to try anyway - I currently have R1 ag tires and wheels on my L3800, really would like to swap to R4's and am willng to trade. Tires are in great shape, no rust on wheels at all. I would be willing to travel a reasonable amount to meet (I'm in Houston). I'll even throw in a good bottle of whiskey if that tips anybody over the edge.