Hi Ken & Hermosil,
Still quite a few of these later Model 17's out there sitting around not being used.
Yes that's a Villiers 412 RD fitted as it runs in reverse with the belts being on the outer and not the inner section of the shaft.
Honestly that one doesn't require restoration, just tidy it up and put it back to work. It's a Survivor !
Cheers,
BB.