Totally agree with Mick, money is no object to these so called 'collectors' I've repainted a couple of the Corgi tipper trailers for a freind, who to be honest has'nt a clue when it comes to models, in fact I have completely stripped down and repainted a tipper trailer in a couple of days, dead easy! and you can pick them up at toy fairs for about £10!
Now I've seen what they can make, I'll definately have a go