If you have 8 bolt wheels, any of the older, factory style 8 bolt 16 1/2" or 16" (or the old 15" 8 bolts that are very hard to find) wheels off a Dodge truck will bolt on, and with a decent size tire will look right.

I think, with the clutch pedal, I would take a look under the dash and make sure the pedal itself isn't dragging against anything. Wouldn't hurt to check the linkage at the bell housing either. Most of that old stuff had grease zerks everywhere, if the greased parts haven't been moved for a while, the grease could have gotten pretty stiff and hard. A good cleaning & re-greasing might do wonders. (I think I would check all the greased things on the truck, a couple pumps of fresh grease might make a lot of things work better/more smoothly).
Past the hard grease or binding pedal, the next likely shot is the clutch cylinder rebuild or replacement. Gene