Thanks all for your info & comments. Gil seems happy to do the downtube decals, and the basic Bristol coat of arms (which is close enough for me; I'm not looking to reproduce exact details, but to breath some new life into the bike and give a nod to it's origins). I'll make sure I post up some pics of the project as it comes along. Bear with me though, I have a Suzuki GT250 preoccupying me...