Greenlee makes the following kit. They are perfect for what you want to do. They are also sold seperately.
All responses based on the 2011 NEC.
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Sizing motors here. Online motor calculator here. Online calculators here.
Thanks everyone! If I make it over there tonight, i will take pics from the attic and the inside.
The previous owners had insulation sprayed in the attic for better energy efficiency...however, it's a PITA getting around up there, finding things, and most importantly, not falling through the ceiling!