As long as you're going for engineering and not elementary English education you'll be fine. You may not place periods in all of your sentences, but man is your grammar all over the board!
But as Rara and Stazi both explained, the R&D has already been done for these turbo kits. A lot of people think $5k is a lot of money, and yes it is a large chunk of change, but not for what you are getting with the ADC kit. There's been talk from several members on here, trying to make a cheaper kit. Yes it's possible, yes it's been done, but to what efficiency I really can't comment on. PM BlackwidowSVTT, Warmonger, or Stilov on what all they fabbed up themselves and get ideas on what you can improve on. I'm always up for seeing everyone else's renditions of a Turbo Tour.
Mark
