accurate replacement grill cloth for a Sunn?

[MarshallLaw]

i have a '72 Sunn rig that had the grill cloth replaced at some point in its lifetime. i want to restore it to it's original look. where can i get some grill cloth that looks like the kind that was originally used on Sunn stuff?

[JimmyM]

a quick google search reveals that you and a lot of others want it reissued.

[KramerBassFan]

I want to think you can get close if you mount FENDER grill cloth (the salt and pepper stuff) vertically, instead of horizontally as it is on Fenders... or vice versa...