#4
Manson made a guitar for matt called the M1D1 which had a Koas pad and built in fuzz controls, i really wanted one but they dont make then anymore.
#5
I'll build you one, but it's not cheap.
ESP LTD EC-256 and a Fender Deluxe VM
#7
Depends on what you want. Do you want something basic and functional, or do you want something with enough control to incorporate into a live rig, or are you going to control it via Midi. Do you want it in an Epiphone Special as demonstrated on Youtube, or do you want something more elaborate.

Costs to be considered are as follows:

-guitar
-Kaoss Pad
-sockets, wiring, and cables
-enclosures and switches (if any are necessary)
-labor

Send me a message if you are seriously interested and we'll work something out.
ESP LTD EC-256 and a Fender Deluxe VM