I assume that patterns exist for the casting of Slate waggon wheels, axel boxes, bobbins, couplings etc... to build replica wooden slate waggons. Could somebody point me in the direction of the right person to speak to about possibly finding out the costs involved in acquiring some of these and a set of drawings for a 12" to the foot wooden slate waggon. The chances of finding some original wooden waggons in need of restoration available to purchase is probably nil? Thank you in advance. Russell.