True dat , you can get a S&S crate motor for around 8 grand ..
Back then for around $500 , maybe a bit more , you could bullet proof those motors , it would cost a bit more today with inflation .. But they were pretty reliable , shovels more so than pans , even though they were almost all common parts .. You just had to stay on top of stuff and be prepared to spend some time going over the bike to make sure nothing fell off ..
I would change out the ignition and charging system and upgrade what few wire connections there are to the stuff they're using now ..
The beauty of those bikes is the shovel was the last bike that all you needed to work on it were common hand tools and a multimeter . Once radios and extra lighting became the norm and eventually FI and EPA crap , you started getting into the realm of shops and special equipment that most of us couldn't justify the expense ..
I don't need no radio , can't tell you when I turned mine on last .. But I need speakers too , so there ..
But alas on we go I ain't fixin' to right now anyways ..