Difficult one mate as it really dosn't fit in anywhere for the enthusiast?
There is an Air Cooled Monoshock class in the Classic trials, but beyond that it is a bit of a fun bike?
Pre 65, Twin Shocks in good condition will fetch more money because they are collectable and open to more events.
Thats the bad news.............................You buy it for 100 notes and stick it on ebay
Maybe