and a very good on-line shop here...http://stores.ebay.co.uk/Little-Wheels? ... 7675.l2563
Having visited the headquarters of 'Little Wheels' near Didcot, Oxfordshire and spoken at length with Andrew Woods the owner (and drunk his Tea!), I have no hesitation in recommending this organisation.
The prices are good and Andrew is very honest and courteous in his emails regarding models he has for sale.
I went there to collect a model I had purchased from his ebay page and came away with Five more, I'll never get rich at this rate will I...
Ghosthunter.