Hi all!  
BillM - Here's my understanding:  I think that there were three fitments for hardtops for the Spridget series.  First the Bugeye, which had a unique rear deck profile; then the MkII Sprite/MkI Midget, which, for some reason, has little "notches" at the belt-line, just behind the door, about 6 inches long.  Then there's "everything else", which is the same as the MkII Sprite/MkI Midget, but without the little notches.  So based on that (perhaps incorrect) understanding, this one fits everything after the Bugeye, but is only "correct" for the MkII Sprite/MkI Midget.
Mighty - I don't think it would work for the bugeye, due to the different profile on the rear deck.  
Rick - It should be great on your MkII Sprite, though, Rick!  For you I make an especial price.  And 10/01 is the date!  See you then.
Phil