MGB-GT Canvas Sunroof Info?

[Andy Ramm <aramm@concentric.net>]

Can anyoune give me some information on the MGB-GT canvas sunroof that was
offered?  My car has (had) a regular pop-up type, but it's big, obtrusive and
very heavy.  Are canvas sunroofs still available anywhere?  What is required
to fit one?

Thanks as usual,

Andy