Hello Ryan,
There is a bloke on REMLR (
http://remlr.com/forum/index.php) who makes canvas covers for ex military Land Rovers. His username is Restless Rover. From comments on the forum the level of craftsmanship is top notch.
I have no association with the seller. However, when it comes time to get a canvas cover for my Series III FFR I know who I will be contacting
Kind Regards
Lionel