Hi Tim,
From what I can see I think that the shop has merely just put a new bottom blade on without machining it, thus it doesn't mate up correctly with the blades on the reel. They have therefore adjusted the reel to not touch the bed knife and in places that clearance will be more than in other spots as the sole plate will more than likely have a slight bow in it. Common cop out by bad shops just taking money for nothing.
As far as the clutch issue is concerned you are correct that you will have to obtain the correct clutch body to match up with the engine shaft, so select you powerplant first and then purchase your clutch to suit.
Also be mindful regarding engine to handle bar clearance as some engines will fowl against the RHS handle bar up right.
I'm just wondering who's done the previous resto on this machine as Rovers came out in Rover Red and Kermit Green and Scott Bonnars were all Hammertone Green.
If you could show us the ID plate on the LHS of the chassis this will clear up what machine chassis this might be.
Cheers,
BB
PS I've just had another look at your first front on photo and I'd be pretty confident in saying that your machine is a Brisbane made Rover as it has the bolt through the chassis catcher rubbers fitted and it also has the circular Rover sticker on the handle bar shield plate. So technically it should have a Silver ID sticker on the LHS rear chassis rail near the clutch body.
