i just keep swapping engines into my karmann ghia every time i would have an issue from the rear main seal leaking suddenly. one or two engines and i became a lot more serious on changing that seal if i got any kind of shudder when shifting, or a sudden oil drip from the transmission/engine mating area.
but engines were only 100-150 bucks back in the 90s so it wasn't a huge deal buying, just got tough finding used engines laying around after a while.
I bought that dune buggy when I was 15 scouting junkyards for old VWs, fixing them up and selling them with a $25 Earl Scheib paint job. As long as the frame wasn't crunched, everything else was fixable with junkyard parts and a socket set and set of wrenches. My Dad gave me space in the garage and rides to the junkyard on weekends. One weekend, my Uncle came with us. I found a 4 spd. 69 GTO convertible - yellow on white. It ran but smoked a little. I begged my Dad to let me buy the car and when he wouldn't , my uncle bought it. I'm still pissed (LOL). I mean damn, I found the car. Shit!
The guy I bought the buggy from owned an import car repair shop - Phil's Foreign Cars in Ledgewood NJ. I worked for him over the summer, off the books, until it was time to go back to school. Anyway, it kept me off the streets and out of trouble. Those were different times.