I'm appealing to the auto and truck modelers out there on this one.. Anyone know of a reliable retailer or brand of scale model tire? Specifically, I'm looking for an inexpensive tire (resin or rubber) with the wheel either molded on or as a separate part. Diameter about 0.75 to 1.25 inch. Must be wide with thick tread. It's for a construction equipment model (6-wheeled crane) that will be scratchbuilt. I've looked on yahoo, but can only find very sparse help. Only one or two dudes that look like they're selling them out of their garage. Thanks.