Nice work on the glider Mitchejc. I agree that a router would be much more versatile and I will be making one to go along with the hotwire. One of the crucial things with supplying wing cores for people to finish is to also supply the beds. A router cuts the beds into little bits that are really hard to put back together ;-)
I'm aiming to produce 3 types of glider from foam as kits and hopefully the funds from them will help me to make my 'aluminium capable' router for making parts and moulds for composite gliders.
Prototypes for the composite gliders will be routed as you suggested above, especially the fuselages.