All I need to do now is add a thermostat, which I already have. I plan on mounting the power cord on the back connected to two powerstrips. I am building a second rack identical to this, and one thermostat will power the top 6 shelves in both racks, and the bottom thermostat the bottom 5 shelves in both racks, helping me keep a better heat grading across the different heights/heat in the room.
Here is the view from the back after the shelves have been secured, with the flexwatt attached.
I ran 4' of flexwatt and soldered it to the ends of the extension cord, and then stapled them down so they wouldnt pull and break the solder
I put the back on then, first stapled a 6' x 4' piece of Reflectix Radiant insulation to keep the heat moving the right direction, and then 2 6'x2' pieces of 1/2" particleboard . Screwed into the back of each shelf twice, and once on each side, for support.
I still need to add the thermostat, but, Im happy with what I have so far
More info later.