The pulley system was the most time consuming and complicated part of the project.  I had to come up with about 4 inches of pedal throw and make it strong enough to really put some stress on.  I weigh 215lbs. with heavy feet.  Not to mention, I dont want to be flying and worrying about damaging my pedals...

What did I use for the pulleys?  Screen Door slides!   Yep, also in the hardware isle of Home Depot.