The Fed 2 type may fit. The Fed 5 is quite different. If the Fed 2 one doesn't fit, it may well be possible to alter it so it does. Another alternative is to cut your own. It is not that difficult once you have have leather. For the adhesive, Jon Goodman used to do some very good adhesive which was perfect. Not sure if he does it now, you would have to check. I still have some together with some calf leather which is ideal if you get stuck.
Kim