i'm not sure how the accufab compares to the setup that magnus sells, on mine i was able to cut off the factory throttle bracket and use the 1g dsm one welded in place, i needed to make a throttle stop and an adjustment screw bracket but that was easily done with some steel stock i picked up for 4 bux. it's kinda ghetto looking cuz my welder sux but i'll post pics later when i get home.
as far as the TPS i believe it's just a +- 5v setup like our stockers you either need to cut the sensor connector off or find the male end from a mid 80's stang 5.0