what sort of prices do these go for out of interest?
You've got to be careful. Some have gone on Ebay for less than £1500 quid but they can hide a multitude of sins. I bought one with a crappy body but only 2600 miles since 1956. They were maintained up to about 2002 but then many have been left to rot. Mine was warranted mechanically sound by someone I trust but even then I currently don't know whether it can cruise on Unleaded or LPG because the exhaust valves are so soft. It's going to be a big learning curve. I've broken three open ended spanners this week that I've been using for 20 years. Half the b@st@rd nuts and bolts are AF and the rest are
It's fun though ;D