plenty of ford 4.6 svt v8's pop up on ebay, its a cheap way for power and parts are easy to get hold of, the old cast iron block 302 is a bit more expensive for modding now so depends how much money you have, or you can get the new alloy 302 v8 twin cam with vct shipped in a crate depending on spec for $6k usd from ford parts in america but all depends on your budget ofc, good luck whichever way you go anyway