Drive some at a dealer or two. The right car will very often find you..
I'd also advocate using a dealer, too. They are the life blood of the marque & invaluable if things go pear shaped. They are also as enthusiastic as we are..!
Thanks everyone for the very wise advice. It is much appreciated.
I am encouraged to see the term "trad" being used and that there is a clear distinction amongst Morgan enthusiasts between traditional models and the new cars. This goes a long way to assure me that there will always be a market for the trads and buying one won't be disastrous financially.