There may be a change to this story.....
I might have a line on a 99 PSD (don't know whether it's early or not since I haven't looked at it yet) that sounds like it has a low compression issue. The guy is going to drop it off next week so I can do a compression test on it. He bought it for the flatbed (hydraulic bale-loader type) and didn't pay a whole lot for it. He may be willing to sell it cheap.
I might end up with a blue '76 4x4 PSD with a 6-speed. Since the '76 is already insured ($30/mo.) and has permanent plates on it, this is looking to be an interesting project....if the guy's price isn't totally rediculous.
Here's the initial truck: