I bought a pile of "scrap" out of the back of a closing down workshop 30 years ago and got an A10 frame, book and gearbox, a dommie frame and a TR6 rolling chassis
Sold the TR6 within days on the condition he got it built registered and used it which he did and I still see it kicking about occasionally ridden by his son,
The A10 I built up with CBR6 running gear and made engine plates to take a buyer supplied bonnie engine, that ended up as a hill climb bike and was last heard of running big knobblies and burning methanol at Red Marley
To my eternal shame I got sick of seeing the dommie frame, couldn't get a reg on it and nobody wanted it so I buried under the rockery I was making at the time
I suppose that will still be there