Hi Fretty, been a while since an update. Interesting wiring options I like it ! I'd get Pablo to cut a custom pickguard so your switches aren't coming out of the 5 way switch slot and you have plugged the usual volume pot hole.
With the veneer on HS I do it similar to Tony. I usually glue it on before I shape the HS. Cut the veneer oversized, glue it and clamp to the max with a flat piece of wood. You may need a round object to hold it down near the curve near the nut.
After glue has dried and remove clamps, sit veneer side on a flat surface and carefully cut most of the excess off with a sharp stanley knife. Then carefully sand or file edges that won't be shaped.
Then I cut the headstock shape then clean up as usual