So finally got this wrapped up over the weekend.
I had to trim the plastic piece that pins to the rear of the front bumper. I could have removed it, but wasn't sure if it was necessary or not:
I got it bolted in using SS self tapping screws. The contour of the bumper made it interesting to bolt in. Especially since I used sheet metal that was 5x thicker than I needed. So a little modification of the brackets to fit correctly was needed:
This filter housing and filter I installed on the drivers side of the bumper. Again using SS self tapping sheet metal screws:
Then I cut the transmission fluid return line coming out of the top of the radiator and spliced things there:
So the way I plumbed it in is that fluid goes from the transmission --> to the bottom of the stock cooler in the radiator --> through the radiator and out the top --> into the bottom of the auxiliary cooler --> out of the top of the auxiliary cooler --> into the "In" side of the filter housing --> through the filter and out of the "Out" port --> and back into the transmission.
I haven't driven the car much before or since to know if does anything. But it definitely gives me piece of mind knowing that the fluid will stay cooler and I now have a decent filter that I can change out pretty easily.