Ok got some good news, some not so good, and some possibly very disappointing news.
Also a couple of questions with some ID help requests.
Here is the good news, I replaced the fog light indicator bulb, success! and just so you can be sure it is euro I have it on with lights, on with just parking lights and off.
Next I swapped out my brake release for one i scored with much better lettering, easy swap,
Lastly I cleaned the lenses and rotated the bulbs to get better contact and here they both are working. (license plate bulbs)
I grabbed one pic of the bulb holders to show how i plan to add a second rear running light bulb. I wont finish this until later on.
I also discovered the thermostat was original, likely. I was stamped Germany and 3 84 I believe, no pic as I had coolant all on my arms.
The not so good includes these pics, pretty self explanatory.

broken nipple
oil filter gasket leak prob....
looks like rust? sludge or something, waiting on 46mm socket to arrive so I can pull the sender and check out the tank, also replace the fuel lines in the back....
Ok the bad news is while I was holding the vacuum nipple waiting for the jb weld to dry I spotted this
so I got under the car and found these
I also took these pics in case you guys/girls can tell from the linkage or case
this makes me think the trans is not an original euro 5cylinder flywheel. I interpret the paint markings as probably
BAS 82 M240
meaning B(ob's) A(uto) S(alvage) (19)82 M(ercedes) 240 (d) {trans and bell housing}
What do Y'all think? Would someone have swapped the FW when putting a JY trans in there? I wouldn't but who knows. Also maybe they mean something else like IDK.....
anyway here is the rear end if that helps understand the #s and ill go through the records to double check for info
LAstlY
ID questions, if you know what this is please chime in.
My compressor, Sanden? other?
and this grommet spacer thing