mordenman,
Welcome to the forum.
Sorry I can't sell you any table inserts, but do you have one that is not totaly trashed? I have cut my own inserts for table saw, band saw and scroll saw. I have used bits of good plywood, plastic chopping board and have recently bought some of the low friction plastic stock, all of them have worked fine.
I use carpet tape to hold the old one on the new stock, cut round it using the band saw or scroll saw and trim to size with a bearing guided router bit in the router table. If you have the right tools it could be worth a try.