as long as you know how to cobble these old bikes together on the side of the road... i would agree, you'll have more luck fixin' and finding a part "that works".
duct tape, zip ties and bailing wire work better on vintage than modern.
Heck yeah man!
For real though. I might as well say I have a 2009 Honda CB550F.
Minus the cam and pistons, everything inside the engine is new. (including the clutch)
Wiring, new.
Forks, new.
Seat, new.
Sprockets, chain, tires, tubes, bearings, seals, gaskets, you freakin name it, it's all new.
So I am not too worried about it breaking down, I think if anything went wrong with it, it'd be something that is pretty much supposed to wear out.