Diesel Bombers - 1988 Chevy P30 6.2L problems

Hello all, This is my first post as a new member. I am new to the diesel scene but I am not new to fixing things myself. I have purchased a USPS 1988 Chevy P30 Stepvan with a 6.2L diesel for a song in non running condition. I figured I should be able to fix it as I can fix almost anything. Boy how I was wrong. Here's what I have done:

When I bought the van, it had been sitting for about 7 years, so I checked the transmission fluid, it was fine, I checked the radiator fluid, also looked great. I changed the oil and filter, also the fuel filter. I added 10 gals of fresh diesel to the tank along with diesel stabilizer. The glowplugs were smoked so I changed those, and also the glowplug controller. The terminals to the glowplugs were falling apart so I replaced those as well. At that point I figured I would have a running system. So I hooked up some jumpers to my explorer and attempted to start, I opened the air bleed and fuel was comming out when I turned it over, I took a sample and it looked ok to me. I then contunued to turn it over to no avail and started to melt my jumpers so I stopped for the night. At this point I decided to buy a few books, to takle any electrical problems. It seems someone knew just enough to be dangerous with clipped wires and flag jumpers and garbage crimp connections. I checked all the fuses and all were ok. I used a test light on the fuel shut off, it's getting power, I checked the glow plug connectors and power, checked all the glow plugs and they read about 1 ohm. The glow plug light does not come on the dash when I turn the key so i thought, maybe the glow plug controller was bad, so I got some better cable and jumped the controller like a manual glowplug switch. They heat up so they must be working. Tried to start, no go. Moved onto a fuel problem, cranked with injector lines disconnected, barely a drop out of them... I thought these were high pressure lines!?! I then took off the fuel filter assembly and cranked the engine, fuel out of the outlet, so i figured I was ok, put the filter assembly back on, got a leak out of the sensor, so I bypassed the whole filter assembly with a line and inline filter just to check it. Still had fuel, and then all of the sudden, no fuel from lift pump. Must be an empty tank so I disconnect the inlet to the lift pump and the return to the tank and attached some new hose to the lift pump and return and put them in a can with a new batch of diesel. The lift pump would not pull up fuel, so it must be a worn lift pump. Got a new lift pump, installed it, put lines back into the gas can of diesel, still will not pull up fuel! Now I am baffled. So, I take some line and hook it up to the injector pump line, with an inline filter, fill up the line with diesel, stick it in a small jug of diesel, run the return line into said jug, bypassing the lift pump. Still wont pull fuel. What the hell am I missing? Im pretty good with gas engines... Do I need new injectors and an IP?? :s:

I thank you in advance for your guidance. Perhaps I would be better off selling this thing for scrap :argh: