If you got the scratch, check out:
New Fiberglass Hard Top for Defender 90
Seem to be better than the original.
I had an original FG top at one time. It was in near perfect shape, however the quality was terrible. Very fragile. It will easily crack. You have to handle it like a newborn.
Due to shipping, they are tough to sell and tought to buy.
I got sick of it, went back to the soft top. The FG top took up space in my garage for a long time.
I'm very thankful I sold mine for what I paid for it.