Has anybody used one of those on a Rover?
http://www.ebay.com/itm/Accel-BUICK-215-DFI-Distributor-77301-Cam-and-Crank-Signals-Small-Cap-NIB-RACE-/380411218014?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item589246885e
Nifty. I didn't know anyone made a distributor like that for 215.
Might want to check hood clearance before committing to a purchase.
If you have skilled access to a lathe, shortening of the body and shaft is usually a viable option. As example, I modded a V8 amc unit to fit 215/Rover V8. "If" the shaft sizes are identical,(many US engines are .500"),this makes relocating the correct drive gear, in correct new location possible, after drilling a new drive pin hole. Shortening the "body" is more involved. Billet is usually easier. Welding "may" be required. Good Luck, roverman.
To it looks nearly identically in size:
http://www.ebay.co.uk/itm/Rover-V8-3-5-3-9-4-2-V8-Distributor-Powerspark-Established-eBay-Seller-/110814543056?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item19cd0fbcd0