Yes tested with all linkages removed first JUST IN CASE, Then as you see in pics, the speed controller is surprisingly smooth considering its age and the fact that it has been stored for about 40 years. The motor is marked up to be 6 Volt, free run 0.9amps, Stall load 7 amps. its fused at 5 amps. the receiver runs on 4 AA's and the rest runs from a 6 Volt 7ah SLA.

It looks a good size motor not sure about the radio gear have you tried it yet?

Here are the internal shots of Huntsman showing the electrics layout. The receiver and Servos go together with the transmitter, (still in original box). The speed controller is labeled SPEED KING, Don't know anything about it, other than its working via a servo. So any technical details would be appreciated. As would any instructions for transmitter leaflet or downloadable, Have tried Sanwa direct but no response as yet (its only been a week, they're probably still laughing at my request.

Thanks tidtug,
Some minor damage to repair. and the missing hand rails & stanchions to refit. But mostly in fair nick. Would like to try on water before winter sets in.

it looks tidy and a nice lot of detail.just shows whats out and about there