I am excited about all this customization talk. I am DEFINITELY buying some cables. Since there are no private messages on Equipboard, I don't see a conflict of interest providing my email address ... nick [at] nickedelstein [dot] com. Jacks in the pedaltrain is a brilliant idea BTW but since I don't have that kind of a board, I'm sticking to cables for now.
listen, I am happy to do mail order work from pedal board and cables to custom bolt-on guitars on a case per case basis within reason. If you want a killer from-scratch tele, for instance, you will buy the componenents with my input and when I get them I will build it, set it up, and then invoice you for my labor and giving you AN ACTUAL SHIPPING charge and when your payment clears I will send you your axe and you will hopefully be so floored you will want to TIP me! Be specific about what you need from me. Drawings for more complex stuff are a must, OK? But listen, I do NOT mod PCB pedals or amps. I WILL make custom effects as long as they are simple, discreet circuits like boost, buffer, discreet transistor with diode clipping OD/dist, or fuzz effects. I will sell custom cables down to the inch, but you are stuck with my preference in cable. I am not going out of my way to find some esoteric cable that will do a certain thing attenuating some high and accentuating some mids. I know what I like and get a good price on and that's what you are going to get. I will set your guitar up, modify its wiring. Pick a job and I will tell you if I will do it for you via mail.
Also, for anything more complicated than a cable, I will want materials costs to be covered up front when you are arranging shipping of the gear you want modified. If you need pickups, tubes, bridge, or anything my shop is out of stock on (its personal shop for me and close friends, mind you) you will purchase said item and have it sent to me and at that time I will provide you with a labor and return shipping estimate and you can pay me for my time and the ACTUAL postage when the work is complete and I am arranging to get the finished product to you.