Try emailing the manufacturers of the pickups you would want to have on the guitar. I emailed Dimarzio once for a layout - 3 humbuckers 5-way switch 1 tone 1 volume. I got a reply within 4 hours. Dimarzio tech support is great, I can't say the same for any other manufacturers as I have not deal with them yet. You could try your luck though.
Remember to state all the stuff you would want to have, the type of switch, the knobs etc.
Hope this helps, bro.
"We've all been raised on television to believe that one day we'd all be millionaires, and movie gods, and rock stars. But we won't. And we're slowly learning that fact. And we're very, very pissed off." - Brad Pitt in 'Fight Club' (1999)