While not professing to be as much as an expert on Old Brits as someone on a different forum i do luv old british iron as much as if not more than modern stuff , granted the prices have rocketed since the advent of Fleabay but if you intend to buy to restore and keep for yourself then its easier to justify the price i feel , as for spares the is a myriad of Brit bike breakers out there if you look hard enough , they really dont need to advertise that much , word of mouth is enough , within 3 miles of me there is an old house where the Royal Welsh Fusiliers where based years ago and it has a drill hall attatched to it in the middle of a residential area , you wouldnt know its there but there must be over £500,000 worth of British projects and spares in there , its my heaven , and across the road from it there is a town house with a huge basement , you have to book an appointment to go but the man is one of the leading people in the Uk for Z900 and Z650 spares and project bikes , you just dont know it exists , sorry for the rambling on but spares are out there for most things if you look hard enough