I just about hit 500 miles on my newly purchased '05 Speedmaster and I'm getting the itch to find a good used Bonne (circa late 60's or early '70's) as a fun 2nd ride. Now money IS an object...but how can you really put a price on happiness?? So, to that end, any thoughts on the ballpark cost of a good used and reliable (not show quality) Bonne these days? And once you get it, do the old timers need a lot of care and feeding (translation: Money Pit) to keep them runnning down the highway? Yeah, I know it depends on the overall shape of the bike but are even the good ones like a toddler in diapers?