You could buy a complete bike from Paul Dunstall, or donor one as I recall, much the same as you could buy a Gus Kuhn Special straight out of his shop, even 920 kitted. he also sold parts separately of course--I think his first complete bikes were pre-Commando; the Dunstall Dominator, based on a Norton Dominator 99, was a ripper.
Good judgement comes from bad experience, which comes from bad judgement....
06 FJR 1300a
Norton Commando Mk111 850