Well Guys I've got both machines now and I very much feel that it would be a waste of time doing the conversion as Darryl said the Electric does not have a cutter clutch and has the cutter running the moment the power switch is activated. The only thing you do with an electric is engage the drive in or out and to be brutally honest it is a bit of crude set up compared to the Model 45 which has far more controllable drive as you can slip the clutch with your hand when you don't require full drive power where as the Supercuts are basically drive forward full steam ahead when engaged.
Anyway here are some photos of both machines which to be truthful are best restored in their own identity rather than butchering two machines to gain one halfcast. Anyway that's my opinion.
The ID plate that actually says Model 17 on it is the Petrol unit with the Villiers while the one denoted as SC is the Electric.
I'm still pondering whether to get the Villiers engine going as it currently has a very internally rusty Kirby Lawson tank attached to it and I won't risk running rusty fuel through it, why it has the tank substituted I don't know, but obviously something happened to the original barrel tank.
The Petrol unit has a great cutter and a superb bedknife on it so I'm very much feeling that I would love to restore the Villiers powered unit to its former glory, while the electric is a far better tennis court / private lawn bowls mower due to it having less vibration than a petrol unit. Also both catchers are in pretty good nick.
I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.