If you can Tig or Mig weld you can make all the piping yourself and save a butt load of cash. It also allows you to build your kit off your choice of turbo i.e flanges, on center, outlet sizes etc. For the I/C there are loads of options and cold piping well ebay is your best friend. Pipe kits go for sub $100.

Anyways good luck with your setup bro!