Not sure if anyone else here has found the cross reference for the sunroof seal, but I did. I actually got ahold of signature sunroof, they're the ones who bought ASC inventory when they switched from American sunroof company to American specialty cars. Four of the original ASC guys work for signature now. Well they gave me a few phone numbers. And turns out land rover had the "cousin" sunroof installed by Inalfa from 88-199?. It's a direct fit. And anyone whose looked for this seal in the past five or more years has but rudely advised its been discontinued. They Land Rover part number is eeq100400. Again, direct fit. There's plenty on eBay. Hope this helps!
Pricey. But nice find!
Here's some comparison images if it'll help anyone. It fit perfect. I did add a small dab of weather stripping adhesive to hold the ends of the seal in place. Here's my old seal compared to the new..
Nice!