i have a 96 contour, i had replaced the same part( the motor selenoid for the trunk) it also had a broken gear, one tooth missing... i too did not want to pay for a whole new unit.. i have a metal cutting latch(small model type) and tried to do it, looked a piles of junk i have, kids old toys, and stock of old parts, could not find anything to use and figured it would take too long to do it, so i broke down and got a new selenoid/motor for the trunk.. if i could have been done cheaper i would have done it as i usually do it when needed........
sorry.