Thanks a lot guys.

New fuses (and bulbs and whatnot) on the way. will swap all of that as soon as it arrives.

The dummy lights do work.

The EGR stuff is still attached. The "random" vac lines are on the driver side. I need to take an afternoon (with a good diagram) and check/replumb everything. I guess I should remove the EGR bits?

I think I have the AC stuff somewhat narrowed down and it kinda works now.

The tach I haven't looked at.

I have another thing that is either weird or completely normal... when I turn the key to the start position nothing happens for a bit. Can be a second. can be 30. It always starts immediately as soon as the starter spins it over... just a long inconsistent pause before that happens. Just want to make sure this a normal thing and not a "OMG, check X before it strands you!" kind of deal.

I also need to ask why there is an AFM on my mechanically injected diesel.