Crumar Musical Instruments User Group.

Just spotted an eBay (UK) listing for a Crumar Roadrunner.
It's listed as spares or repairs, but the seller is a clearing house with no facility to test this sort of kit.
In short, it may work! Selling for £30.. + £18 shipping.
Comes with gig bag as well..

http://tinyurl.com/crumarroadrunner

I've added this item to the "for sale" list, as well..