Hi Brad - Sounds like there's definitely a guitar build in your future! I'm in pretty much the same boat...I don't play, I've loved the challenge and the puzzle-like problems that a guitar build poses, and my wife thinks I'm nuts b/c I want to build another one already! You'll learn a ton....go for it!
Anywho...this one cost ~ $200 for the pickups, hardware, neck, pots, dye, and lacquer. We went about middle of the pack on the "pups"...one is a used GFS Fat Body, and one is a Wilkinson...both have "good" sound...clearly a step above the cheap stock pups, but not exactly esoteric either. The humbucker was given to us, and is a decent stock pup from an OLP Petrucci Signature guitar. We could have shaved cost in lots of places if necessary...probably could have gotten it down in the $100-$125 range, but could have also easily doubled what we spent. Sorry, I know nothing about the Griz kits.