i have quite a few Charvels (Custom shop, mutt and pro-mod) and they all have 1 11/16" nut width with R3 nuts. the heel width is 2 1/4". as for the pro-mod neck thickness they do vary a bit but are mostly in the .780"-.790" 1st and .830"-.840" 12th ballpark. it's much less of a drastic taper than the suhr pro series guitars and is IMO much better feeling partly due to that. the pro series goes from slim to baseball bat thick and bulky and feels like two different guitars as you move up and down the neck. way too drastic a taper. the suhr reb beach neck on the other hand is real nice since it's fairly close to the Charvel style with a subtle taper. the charvels have such a subtle taper it hardly feels like any change at all which is great feeling as you play up and down the neck. they're also real comfortable since they sort of blur the line between a C and D back shape. they aren't quite as round as a C but not as flat as a D with the typical shoulder of a D, a good balance between the positive attributes of each shape.
-Mike
....try paying just a lil' more attention. It actually answers part of his question. How about you go fetch, and find the rest of the info he needs. M'kay? 
