Got a Hornby M7 for £35 Inc postage - it had been renumbered as a Caley Tank but a quick few wipes with a white household stain remover block restored it virtually it to its original condition, rubbed a bit too hard in one part and removed most of one of the original numbers but it got renumbered anyway. It also needs a new dome as the original had been filed down but that is all of £2.50 from 247 Developments.
Late edit, that dome is too tall , but found out that Craftsman do a Drummond M7, T1 dome