Dude, don't feel bad asking questions. That's what we are here for.
For alternators, I too am looking for a beefier alternator since my audio system killed my last battery. I was referred to
http://www.ampmanaudio.com I'm sure there are other sites too. I was wondering if I can even hook up a Ford alternator in my car. The Mustang GT has a 130 amp alternator and I might be able to get one for cheap-free. :smile: I heard that as long as the alternator physically fits, all the wires are the same. But I am not totally sure.
For antenna, I think the S2000 antenna is pretty solid. A few of our members have done the conversion.
