arp sells bolts for everything for the mustang, you might want to check with them.
sounds like he used the incorrect bolts for the fan, you might have to get a tap and make some new threads on the water pump impeller.
i'm not sure about other intakes on the market, but my holley intake was already blocked new for the egr. if you wanted to have it work it has to be modded.
correct.
kb makes only hyperutectic stuff and i thought you had a blower so not a good idea.
there are spacers out there so you can adapt 302 intake to a 351.
i would just find a running motor and redo it with a good quality internal kit like keith craft sells.