This company on Ebay says that they can make bellows- search this name and contact them-
ecbuyonline2008
Is your camera 6x9 or 6x4.5? I have a 6x4.5 and Sandeha Lynch said that he can't make bellows for such a small camera. So I made a set myself. Not much fun, to tell the truth, and although I am 'proud' whenever I open the camera, not something I'd make a habit of doing.
The front attachment is trapped by the board and mount. Pay attention to the plates and washers on disassembly. For the back, I couldn't see how to get inside the body to undo the pressed metal sections that hold the bellows in place. And I wasn't up for stripping off the leather, prying and uncrimping, etc. for what for me was not a valuable camera. Desirable, yes, so I trimmed the old bellows back leaving two folds still attached to the body. I then contact cemented the new bellows onto to these tabs.
Permatex or other black gasket material can work well. I have some thin black masking tape. My initial pinhole work involved Elmers glue with black acrylic paint. Applied inside and out. Then a layer of black masking tape on the outside area, with another light layer of glue mix. This worked for a couple of holes but then as I used the camera more and more the bellows basically started disintegrating, forming more and more pin holes, then slices, etc. So just be ready- I've had bellows where a few patches was all it took, and I've had some like this one that were basically falling apart in every way.