I was looking at carpet from TRF, at $700.00 on sale + shipping, its a bit hard to justify. I found Heritage Upholstery in Wa./Canada, from there web page they seem ok, no prices listed. I just placed a request with Newton for complete carpet kit front and rear, headliner and seat strap kits to replace the broken diaphragms.
I'll let you know what I found.
Cheers,
Rob