Hi everyone. Just joined the forum so here's my introduction. Vintage, well my first bike was a Raleigh Chopper, first moped a Puch Maxi and first motorbike a Yamaha RD200. Looking from what I've seen so far makes me a typical new member! Moving on, current bike is a Triumph T100 that I bought new 3 years ago. Recently finished converting my Kona bike to mid mount ebike. It's already faster than my Puch ever was. Now retired and looking for a project with much greater longevity and challenge. So I haven't bought the bike yet. I'm looking for a 400/4, but will consider 550 or 750. Looking at ebay there are just a handful of candidates. Any advice welcome. Some thoughts so far. Only place I have looked as yet is ebay, is there somewhere else I should be looking? I've seen complete bikes looking tatty/reasonable around 2 to 3K. By 4k they look too good to need restoring although I'm sure some do! A dissembled fairly complete bike ending soon currently around 1K, better to buy a complete bike I think due to the fun of disassembly and the learning to be gained. I really want one that would benefit from a complete engine rebuild as I see that as the right level of challenge. Any pitfalls, newbie mistakes or money pit avoidance ideas and general advice really welcome. Thanks for taking the time to read this and looking forward to your ideas.