I have a 1999 Busellato Optima pod and rail machine. It has two different size vacuum pods. I would like to know where I can get the material that covers the top of the pods. It is a white rubber like material with a type of mesh or fabric backer. These things are too expensive from the dealer (no names) and I can make them myself if I can get the material to do it. I appreciate any help I can get on this. Thanks in advance.