hey thanks for the link.
I will be doing this! after missing out on a few eBay auctions, I googled the PN for the ignition lock and found a new one in stock at a parts place in VA, feel like that was kind of lucky as i hear they are generally not available.
after that i bought the gas cap lock cylinder from maxbmw for $26 . I have done that dremel re-key once on a luggage lock, i guess i didn't do a great job bc I felt like that lock was always clicky and jiggly afterwards in a way that would really not inspire confidence in the gas cap so I will probably take the parts to a locksmith and see if they can match them up. i've heard they can take them apart and switch the pins around or something.
as long as the ignition and gas cap work perfectly, I will re-key the seat lock to match and then store the luggage keys under the seat.
bottom line: my brick lives to fly another season! thanks all for the help