Ok, so I went back to review my post about backdating here
http://www.914world.com/bbs2/index.php?sho...+long+BUB'sand found that I had already installed the fogs and horns prior to the final installation of bumpers. Couldn't remember what I did, heck, I can barely remember what I had for dinner last night; wait, it was fluke fillet with a white wine/caper sauce, mmmmmmm, delicious, but alas, I digress. Anyway, thanks to the search feature here, there is a flat area below where the light goes that I drilled in the center. It must've worked out well 'cause the lights pretty much were centered when I installed the bumper assembly.
You don't need a fancy tool to install the Nutsert, there's one that looks like a bolt with a nut that gets tightened after the Sert is placed into the hole, effectively mushrooming out the back and locking the Sert into position.
Now to go out to the complete Hell Hole that is my garage and see if I can find it.
Stay tuned...