What I am leaning towards is to have it swing out 90 degrees from directly beneath the countertop. This will need to be on a single point, heavy duty rotating hinge... any ideas on what to use? I could try to build around a 1" heavy black pipe with threaded flanges at the top and bottom. I would build this from a mix of 3/4" birch ply (top/bottom) to deal with the stresses of the pivot point and 1/2" birch ply for the front, back, sides. My sketchup skills are pretty weak but hopefully this gives you an idea. The pipe/hinge that I am referring to would pass through the hole at the top/back of the swing out. The stove alone weights about 30lbs...
This won't be a light weight add on but I haven't based my build around being very light. Appreciate your opinions and feedback!