Thanks for all of the advice, I will make sure to follow the instructions when I get a diesel compression tester. As far as parts that have been replaced, here is what I have been told or could see myself:

-Both Fuel Filters
-All Glow plugs and GP relay (about 2 years ago, replaced with the pencil style plugs, I am going to check all of them as the GP light does not come on at all, although I do have power on both sides of the strip fuse on the firewall when I turn on the ignition)
-Injection Pump (replaced with a euro pump)
-Battery Ground Cable
-Valve Adjustment Done

Many other items have been replaced as well, but all others items do not have to do with my current issue or the engine whatsoever.

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1983 240D 4spd
1984 190E 5spd
1987 300D (sitting for a year or two)
1989 Toyota Camry 5spd (current DD)