WANTED- Door seals for a pressurized T337G

[JohnT]

Hello, I'm new to the forum, thanks Herb! I have a '72 P337G and am in desperate need of door seals. Just over the last two years the current ones have lost their ability to seal and pressurize the cabin. Cessna no longer carries these seals: 1511446-1 and 1511418-1. Does anybody have any of these or know a source for the bulk material or suitable replacement? I'v searched many parts suppliers and salvage yards to no avail. Has anyone had any luck getting a field STC for a Bob Fields inflatable door seal on a 337? Any help would be GREATLY appreciated!