OK, so back home it's time to reflect on what I learned:
Truck is in half-decent shape, seems salvageable for sure but of course does have issues.
Changed degraded steer tire to the spare that was low on air, but seemed to hold air.
Engine cranked freely and would run on Starter fluid. Exhaust spewed mouse and bird nests, rust, straw, and dirt aplenty.
Electric lift pump ran with the switch and very slowly purged the air from the fuel filter assembly.
When the motor was turning, the air compressor was building pressure. There is a leak on a fitting screwed into the air-pack.
There is some rust, but noting unusual for this era of truck.
Hercules motor carries a build date of 1983.
While the motor it turning, the clutch works the the truck would move in at least first and reverse.
With the brief runs, I didn't go more than a foot or so, but promising.
There is coolant in the radiator to the fill line, and it's green.
The driver seat is some sort of springer seat.
Voltage gauge is inoperative, tach and air pressure gauge work, others are less clear.
Based on the illustration linked in the thread mentioned:
I snapped the plunger sleeve pin by trying to rotate the fuel control unit. I'm pretty sure this was while the bar was still on.
When I pulled the fuel control out, lots of very rusty fluid came out. So, I'm wondering if the fuel plunger or sleve might be seized in it's bore?
So, I guess I need to determine if I can access that to see if it moves. I can try through the hole the fuel control unit goes in at first, but if there were another access, that could be handy.
Of course I need to replace or repair the fuel control. It looks like it might be a pin installed rather than made as one piece. Can anybody tell me the protruding length and diameter of that little pin?
Having snapped the pin off in the pump, do I need to worry about it getting into a part and destroying anything? I suspect it got washed out in the flood of fluid that came out with the fuel control, but would feel better if I knew that even if it didn't, it wasn't likely to destroy the injection pump.
I think I have a spare air-pack sitting around and hopefully it has the needed fitting.
A tow truck is still the plan for now. Another $1600 makes this a lot less of a steal and it's less adventure than making it home under it's own power, but with the IP issue and my work/parenting schedule, it might be the best plan.
Also time to look for a tailgate, battery box, and a few other things, but only after it runs.
