Hmmm.. I sent an email to Onyx Forge guitars for a custom made SG..
The specs were as follows ==>
Body:
SG Mahogany body (based on the thicker '61)
Nitrocellulose Lacquer, painted in white
Red tortoise shell pickguard (smaller pickguard of the '61)
Routing for 3 P90s (does not matter if it's humbucker routing, no pickups required)
Neck:
Set-neck
24.75" scale
Mahogany neck
Rosewood Fretboard
Tree of life inlays
Reversed headstock (not 3-by-3, but 6)
Electronics:
Tune-o-matic bridge (if possible with Bigsby)
Piezo enabled with blender options
Master volume
2 tone controls (similar to strats)
Unfortunately, he said that he is currently building warranted full turn key customs, so will decline to quote a partial instrument..
What a waste.. They look so gorgeous!
www.onyxforgeguitars.com
SG with Piezo
http://www.onyxforgeguitars.com/C28.html
SG with a beautiful paintjob
http://www.onyxforgeguitars.com/C23.html