Fulcrum racing 5 campy to shimano

Changing the free hub body can be pretty expensive and not all wheel sets allow this.However I do think fulcrum do have switchable free hub bodies. Shimano for example generally do not. You can just simply buy an ambrosio cassette from UK bike store. Shimano cassette spacing and campy splined. That is what I am using at the moment the the reverse of you. It works perfectly.