I found buying it from a Morgan dealer was best. However it really does need to be spotlessly clean and no traces of glue whatsoever. then wiped with alcohol on all surfaces first
The best solution is to buy the mirror mount and adhesive kit. You do need to work on your mirror universal adjuster though. Don't know which mirror you have, if it's the standard fit black plastic jobbie then I'd suggest you bin it, firstly it's horrible and grossly large so if you're replacing for the stainless steel option have a look at Librands. You'll find there are two versions, a large and a small, IMHO the small is far the best as it doesn't restrict forward vision and you can only really see out between the two headrests, different perhaps if no headrests fitted but a personal choice!
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