Well I just drew it out.
A center line with my 1 11/16" nut width at one end. At the 24th fret position (19 1/8" away from the nut), I drew the neck width, 2 3/16". Then, 25.5" from the nut, I drew the 2 1/16" string spread at the bridge.
With me so far?
Back at the nut, I drew the high E and low E, each 3mm in from the edge of the nut. I ran that "string" line from the nut to each end point of the 2 1/16" bridge spread because that's where the centers of the the corresponding saddles would be.
It looks like I'll have plenty of room for the Wilkinson trem. However, now that I've seen the Hipshot trem, I'm thinking of still using it.
Dave