I would spend the time and money on making the car a reliable, working, safe daily driver before dumping funds into
geting
the car looking shmick and at its best potential(pretty much want a show car) performance and aesthetic wise. But you have time and can hopefully do both before you are behind the wheel with your mates egging you on to do something stupid while driving.
Hold my beer and watch this comes to mind.
Remove the rear set bottom (one 10mm centrally located bolt below the seat bottom, lift up) and see if there is a sheet of tractor feed paper attached to the driver's side (your model) seat bottom metal frame or on the floor. It has the build code for your car. The SA codes are the options and we can decode them. With the VIN maybe one of the online decoders still works to get that list but many of these stopped working a few years ago. US cars came loaded all the ROW cars were optioned as selected by the buyer, importer or whatever. Be good to know what options you have.
From
www.e38.org/e28 a long list of good and bad links on many things BMW:
Door lock,
http://www.bimmerboard.com/forums/posts/6271 shows power door lock mechanisms inside the door. The ring on the back of the lock breaks easily and then the lock just rotates with no action.
Speedo out but odo works is speedometer gears.
Rear pads is not hard work, time to learn to do it since it is a good way to save half the cost of letting a shop do it. On the rear, rotors just need to be a good thickness and not have a thick lip on the edge to be able to be reused, but rotors are generally changed every second set of pads.
Find the Manual and do the
Oil Change Service,
Inspection I service and
Inspection II service,
change brake fluid and coolant and you will have reset the maintenance clock to zero and can know the car is properly maintained.
Lubricate the hood hinges driver's side (for you) is NLA and goes bad quick. Lubricate all sorts of other parts.
Let us know when you get all that done and we'll post up another list. But we need a list of what you want to do to the car, too.