Get the StewMac catalogue and buy him one of everything in it!
O.K. here's my essentials list:
All Stewmac:
1) 2 Diamond fret dressing files curved at the ends(150 and 300)
2) 1 medium can't saw file (three ended with corners smoothed)
3) Reverse fret slotting saw with depth guide
4) fret end filing file for taking the sharp edges off
5) fret tang remover
6) Ibanez set of nut files ( not stewmac but readily available) They come 3 to a set
7) Nut slotting/seating files (angle and flat) for seating the nuts - Martin style, Fender and Gibson thicknesses
8) the SM 2" x 3" measuring plate that has measurements on all sides so you can measure string height etc.
9) good luthier calipers notched for fret wire measurement
10) a case of fret board treatment oil...the stuff is great!
11) Micro Mesh up to 12000...or dedicate a buffer...those frets will blind ya!
With all the above your guy should want for very little...I wish I had a boss like you...