After climbing up and down into the attic a dozen times, removing 1 dead rat, getting covered with fiberglass insulation...I have discovered 2 things.
1. I can't install my heat transfer kit thermostat where I want because I can't get the wires down in the wall there is obviously a crosspiece between the studs in the way.
2. An Energizer Rechargable flashlight, when crawling around in a pitch black attic with no alternative lightsource, gives you 10 seconds between the light dimming and totally going out.