I was thinking something along the lines of Dslyecxi's Gear & Weapons Customization thing he made. I know you plan to include some kind of equipment modifier in the editor but the option to go into something visual like this would be really awesome and very useful. I use it in it's current state to choose my loadouts then copy the scripts into the unit. But to have it integrated into the editor properly would be great.
Thanks
http://www.youtube.com/watch?feature=player_embedded&v=yLIPW0oIvm8 {F19711}