Quote: Small point, but my parts book says that with a chassis number of B20-034420 it's a 1968 model.

Introduced in December of 1967 & made untill September of 1968, ... up to chassis number B20-040000 [for RHD models]
It looks to have the correct grille & headlight rims but a passenger model emblem in the grille.

If it's a sound bodyshell, is registered & runs well, then the price is not unreasonable at all in my view, particularly with the GX induction as it is lower in price & a much better street induction than the Weber setup on a basically stock engine.

What's the cylinder head, A14/15 or GX? [a view from the spark plug side would help with ID.]