Jesus, you had this for sale for a long time!! I've made arrangements to use my buddy's hoist and welder to install this thing in the spring. The only thing I wonder about is the filler neck fitting weird because of the flares the M3 has... it might sit out too far on a narrow body car? I guess we'll find out soon enough.
I took it from this:
And got it to look like this, just with a pressure washer:
Also, just for the record, seeing as there are very few pictures of this out there, and fewer people who have one for reference (although I talked to Will Z, and he offered for me to come over to check out the one in his race car).
Sending unit (which will be useless), trunk grommet, and lower rubber filler tube:
So, I think I'll maybe repaint the nasty orange side, and just throw it in the car. Maybe cut up my trunk carpet to fit nicely, and call it a day. I've already replace most of the small fuel lines between the filler and the tank (the ones behind the rusty cover in the wheel arch), so now will be a good time to replace all the ones leading up to the small expansion tank in the quarter panel.
Found the diagrams on realoem:
Should be a fun project!!