Your formula will consign the GOP to Whiggery of the 1850s. As Nixon was famous for saying, the Republicans cannot win without the conservatives (1968), but they cannot win with just the conservatives (1964).
Huck supporters are not Conservatives, at least the ones that truly have looked at his record. Look how easy it is to get a guy like McCain in the lead. A liberal pro life governor from Arkansas using Clinton tactics has effectively stopped the pro life candidate with the fiscal and defense credentials we need from getting the votes he would have otherwise gotten. I think the majority of Fred supporters could never support Huck. They would scatter between Rudy and Mitt and maybe McCain.