Well, it only took 11 months
but I thought I would post a follow-up to this thread. I finally got around to drilling out the rivet that holds the actuator bracket in. The correct part number for the actuator as Kibo stated was F7UZ15218A42A for my van. It took me a while to figure out how to disconnect the hooked end, but unbolting the latch from the door and rotating the whole thing so I could twist the actuator off did the trick. I ended up popping the new actuator out of its bracket to make it easier to bolt it to the door. After that I just had to snap it back in.
$35 and some skinned knuckles and I now have working remote unlock on my driver's door. Thanks to JWA and Kibo for the tips.