Hi LJGMDAD,
[quote]1. Where can one buy Dunlop in custom sizes?
2. Where to get the wool/cotton batting?
3. What kind of glue is used to attach the batting to the foam?[/quote]
While furniture isn’t an area that I normally do much research into, you may be able to find the supplies that you need at a local upholstery or foam store including upholstery glue although they may not carry Dunlop latex.
There are also some online sources in the component post here that would sell the supplies that you need. I know that Foamorder sells Dunlop latex for couch cushions.
It also includes some sources for cotton and wool batting along with Dacron batting (which would be more commonly used for couch cushions). The woolen mills that are listed in post #3 here would be able to supply you with wool batting as well.
Phoenix