lol..... from my limited experience there's not much that can be changed without major compatibility issues, but it can be done with limited money.. (if your lucky)
alternator / battery / bulbs .... can all be changed with used or equivalent parts
DIM cluster / climate control / stereo / all ECU's .... cannot be swapped.
from what i hear there are used parts which will work as long as part numbers & software match, but without your own breakers yard its hard to find working spares.
