I've always found better deals on the 3/4-tons and stepsides. The status quo preference for the fleetside and SWB trucks escapes me entirely. I especially like the look of the long stepside boxes. Many folks have never seen one before (or never bothered to notice.)

The repro parts game is more limited for the 60-66 era, but these trucks have almost nothing in the way of upholstered goods. I have always been able to get brakes and whatnot at the local parts stores. The few things you can't get can be easily updated. GM trucks from 60-87 are very mechanically similar.

I don't believe the 292 was available until '63. Some 3/4 and 1 tons had the optional Detroit No-spin (locker). IIRC, 1-tons used leafs instead of coils, 5.13 gears, and sometimes a 9-foot pickup box.