Hey Hans
Just a couple of thoughts:
First, in the June 2011 issue of Model Military International, there is an article very similar to the one you desire to write - the author demonstrates how to improve a kit out-of-the box with some basic techniques without aftermarket. So, I definately think there is a 'market' for what you are suggesting.
Second, allow me to offer an immodest proposal: you laid the groundwork for the "Monogram Mafia Two" group build, but it has languished, unattended, for weeks. I would think that a Monogram kit would be a perfect one to demonstrate some of your techniques and the popularity of this particular subject would give you a pretty attentive audience. It would serve to kill two birds with one stone, as it were - it would get the GB you planned to host off the ground and it will give you an arena to start showing off you mad skills.