After making one of these things (and yes, its still not quite done) a good spot to start building one of these would be the front plexi, the front and back panel and the MDF for the front and back frame. Add in a support structure that can go in the middle (like McCoy has on his), but with a place for a dowel to hold the front to the back. In fact, after looking at what McCoy did with his CNC, I think that would be a great place to start. Hell, just having the front panel and front plexi would save people 10's of hours.
The only downside to making a kit would be having the front panel 'routered' for the monitor mounting. that to me was the hardest part, yet not all screens would mount the same, I assume.