If the glow relay has 4 small pins, pin 1 gets +12V to start glowing. Pin 2 gets +12V while the starter is engaged but the relevant event, as I understand it, is pin 2 stops seeing +12V when the starter motor disengages. That's the signal to stop glowing. Pin 3 goes to the glow light in the dash and pin 4 is ground. If there's a fifth pin, it's an afterglow relay. To complicate things, there are replacement afterglow relays that have 4 pins. Good luck.

There should be 2 cylindrical green dampers in a BFS system. One between the VCV and BFS and one between the BFS and the transmission. Reuse one of them.

Not familiar with electrical connections in front of the air cleaner but I'll guess it's a MAF sensor for EGR and ARV which are emission control devices. You don't need them if you're not keeping the electronics.

Sixto
87 300D