This actually reminds me quite a bit of my story... Not quite so many bumps and accidents, but none the less:
Engine had coolant leak, so did cooling system overhaul.
Still leaking, so let it be.
Tranny lost reverse, though annoyed i let it be.
Cheap engine plus manual tranny for 500$? Sure cant be that bad
Engine + tranny swap = WIN
Diff shattered : 3,38 diff
Rust on hood = M3 hood
Crack in front bumper = M3 bumper
Melted rear bumper with OEM exhaust = Mtech 2 bumper
Needed cheap diffuser = carbon diffuser
Needed matching front lip = hamann carbon lip
Needed matching interior to the M3 front bumper = Imola M3 interior
Needed matching steering wheel = M3 steering wheel with thick leather! (awesome)
Needed sound system to go with the Hamann Kardon in the M3 interior = Dynavin with aftermarket alpina amps in trunk
Aaaand the list goes on!
Loving your car!
Looks good when you compare it to the stock first pictures! Keep it up!