No idea, sorry. Jon Norris (Rough Luck Racing) had some problems with cheap ebay head gaskets coming apart at the seams. I would advise buying the genuine MG Rover parts from Brown & Gammons, Rimmers, MG Owners Club or Sussex classic Car Parts. Saint Russell will only fit MG Rover water pumps as the cheap ones are not worth fitting. Your MY 2000 car should have the wider cambelt and auto tensioner which does not normally need replacing. Gates cambelts are good.
Normal price for a head gasket set is around £55.00 and a set of stretch bolts is minimum of £33
Hope this helps