As you are probably aware the rather nice MMC carbon fibre hardtops will not fit earlier cars, I think it was in 2003 that they changed the rake and mounting method of the windscreen.
Rutherford used to make glass fibre hardtops but has now retired, I understand that the moulds were sold to Mathias Kreyes in Germany. Whilst I believe that he now manufactures them I have see no adverts.
Brian
Matthias Kreyes Homepage:
http://www.morgangarage.de/"Hardtops für alle 2-sitzer Morgan aus eigener, lizensierter Herstellung des „Originals“ bis zu den Baujahren ca. 2002"
translated:
Hardtops for all 2-seater Morgans. Own licended production of the original for Morgans who were made before 2003.
Greetings Jens