Oldfart, the bike is a '73 model so it fits into pre '75. I'm not sure of your point regarding shock mounting points. As long as it has 4" of travel and the mounting points are in the original B&S position, it's legal. You sure love those plastic tanks Leith! I hate 'em myself but each to his own. It's a Windsor tank BTW. The tank and the wrong period Acerbis mudguards will be the first things to go. I'll fit a steel TM tank and opaque white RH replica guards and sidecover.
It's not rocket science finding these kind of bikes. The odd and unique come up more often than you'd think. In the last month or so my mate Jonesy has picke up an American Eagle roller for $100 or so, a Wassell 125 roller for a similar price and a cherry BSA Weslake Metisse for 9k which is a lot of money for sure, but really cheap considering the rarity of the bike. Last week I bought a cherry Metisse Zundapp frame that will house my DT1 engine for $104. If you add the $1000 Cheney Yamaha, $400 Hindall Kawa roller and $1000 Hindall Ducati frame/engine, neither Alan nor I have spent silly money to own unique bikes. I was content to finish my Duke and then get into the Cheney and Metisse projects, not needing any more bikes but this bike was too good to let go.
Both Alan and I like the idea of building something different to the cookie cutter bikes. It allows us to inject a little of our own ideas and personalities into the bikes and not be tied by the correctness constraints of a concourse style resto or racer. The bikes we had in the Kompound at CD5 relflect the direction our bike building is taking us. It's also bringing bikes into Australia that have never been seen here before, therefore injecting a bit more variety and colour into the usual mix.
I'd love to see more people purchasing and building 'left field' bikes. It's fun, often cheap and adds a bit of colour to our scene.