All of the non hydro linkage is the same. You can buy a linkage set from morris for under $60 and get all the parts new. Look here.
Are you running headers or manifolds? If you run long tube in frame headers they will often interfere with the hydro linkage. The 4 cylinder CJ's came factory with hydro clutches. So if you want to go that route you can just buy the CJ parts. Parks Mike also make a hydro conversion kit.
. In that post I have some pictures of the differences in the pedals from factory hydro and factory mechanical linkages.