If you end up with a Standard MIDI connector at the end that outputs MIDI data properly, sounds like a plan.
Most guitarists, when first encountering MIDI on their guitar, expect a response that is much like the response we are used to when the guitar itself is just amplified via whatever type of sonic pickup system. That usually leads to them thinking that either something is wrong, or that MIDI guitar isn't what its cracked up to be.
As with many things that may be new to us, it takes a bit of practice with the MIDI guitar to learn what to do and what not to do, how to articulate for the MIDI environment, to not necessarily expect things like subtle hammer-ons or pulloffs to track well in the MIDI environment, even the slight amount of latency that will be inherent even with a very fast puter for softsynth use, or even with Hardware MIDI synths which have near-zero latency. These are simply the problems inherent in MIDI tracking.
The Nylon String guit is a good choice for MIDI IMO as far as those issues go, less demanding than the steel strings for me.
Before you make the big investment, be advised that there is an all software solution available that many are talking about and apparently using that I intend to take a look at this coming new year. This software takes any standard AUDIO input from a guitar pickup and converts to MIDI data inside the host computer.
Be sure to check it out before going the all-hardware route.
http://jamorigin.com/products/midi-guitar/ It may just end up replacing my long-in-the-tooth Roland all hardware setup entirely. Reports from many other players are good.
--Mac