74 harley dirt bike 250

IMHO, the value on these is pretty low, they are not in big demand and they're not rare. An average restoration might fetch a 1000 bucks to the right person, maybe 1500 for an immaculate resto. I don't have the slightest clue as reliability... I would think it would be the same as any two-stroke dirt bike of the era (not so hot, two strokes of the day ate rings, pistons and cylinders and it is Italian).