Awesome.
Reminiscent of a story from one of my buddies.
He raced flat track motorcycles and had a Bultaco Astro in the mid 70's.
In the last few years , he has been restoring vintage motocross bikes and while out to look at some bikes , he found his old machine.
It is nearly done with a complete resto and he says it will wind up in his living room , replacing the coffee table.
I don't recommend that for the Duster , but I do enjoy a story with a happy ending.
Good luck with the impending purchase.