Something like a Super C Farmall with Fast Hitch, would be a possible candidate for what you're looking for. You can get tongs that fit in the FH sockets, and a top link kit that goes where the belt pulley attachment bolts on. Or, there are a few of the full 3 pt. adapters around, but expensive. Not the true geometry of the 3 pt. system, but they work.
For the money they seem to be bringing now a days, I'm thinking you could find a newer than an 8N, but still 3 pt. system tractor. Lots of choices there, from Ford 600-800 series tractors, Oliver 55 & 550's, IH utility tractors, etc. By the time you find an C,H,M, buy a full 3 pt. conversion, and plumb it up, you could have a pretty nice older OEM 3 pt. tractor, with power assist, or full power steering, and live hydraulics. Something with at least a single set of remotes, which can be added if not equipped with, for a hydraulic top link, etc.
Just my 2 cents...