Intake pipe at this point doesn't matter. It will later on though. A ball bearing tubo will run you close to a thousnd dollars after all the lines and all. It may seem more expensive up front, but trust someone who's tried to skimp on htese things before, you will want a good unit eventually and there's no reason to spend twice. The intercooler I'll look into, but cheap ebay ones are good. Going to be around 300 or so. Megasquirt I'm going to let you research on your own

You have a lot of reading to do.