Finding little things are different; shopping for Koni/Bilstein, there ARE listings for the DL, but NOT for the Turbo, and so on. Same with springs. DL brakes are Girling, Turbo are Girling/ATE.
Worst so far? Car came from Arkansas and is poster child for "Southern Engineering" Spaghetti/rats nest of wiring is horrible. Scotchloks, crimp on connectors, multiple wires of same color, live wires connected to nohting; hoo boy! what a mess. Maybe I can twist some one's arm at Painless or similar, to come up with something.
I absolutely suck at electrical stuff! Most other things I'm OK at, but not wiring. Easy for some, not for me. Like playing an instrument; you either "get it" or you don't
Still looking for motor/trans, concentrating on body/suspension/brakes, etc. Lots of abused, worn out, oil starved junk out there; price to rebuild used motor is darn near cost of crate motor!
Doing car while doing major surgery on my show bike Norton and a Triumph, garage expansion and old house re-hab. Bikes are sure a lot easier to work on than bloody cars! Have bike lift, sadly no car lift.