Summit or anyone like that has them, the f/2f/3fe filter is the same as a ford truck filter(PH8A or a WIX for the Ford is 51515 and I run this on all my Cruisers) SO you really don't need anything Cruiser specific.
I have been planning on putting one together with wix/permacool parts. Probably won't be cheaper than the permacool ones at Summit, but if you want I will let you know.