Talk you OUT of buying a bike..... I'm trying to talk you IN to it!!!
Just don't buy an immaculate 60's bike. Enfield spares are plentyful and not expensive as many parts are still made. The usual horror stories about drum brakes are not true. The brakes are weaker, but you won't be going as fast and the bikes are lighter. Brit bike handling is superb, and the styling and build quality is far superior of anything made in India. The reliability will be better as there is less to go wrong (especially electrically). Also there is free tax, classic insurance and less regs.