I put a brand new pair of 11.2 38 rear tires on my one owner 66 yesterday. I hated to do it, but one of the originals went bad on a tractor drive Memorial Weekend. I tried to find another decent matching 10 38, but couldn't, so I went with a new pair. I've got a two bottom Plow Master plow that I should fix up for plow days. It needs two tires, points and shins and needs the crank straightened.
If I could find an early 70 like the one that replaced the horses here, I think I could get right in to that. They demonstrated a new 1800A here for my uncle when I was a kid. I still remember sitting on Uncle Claud's lap and then Dad's on that thing. I'd love to have one here now to restore.
I've had a plan too for a while now to find another 1550 or 1600 and make it look as small and cheap as I can. I want to put a narrow front under it, 13.6 38 rears, clam shell fenders, a pan seat, small diameter muffler, just make it look the opposite of a muscle tractor. That's another project that I could get right in to if I had a tractor here to do it with.