I built the brackets for the new oil cooler and fan today. Went with a Setrab 25 row and SPAL 7.5" low profile fan. I used a 5$ strip of aluminum from Ace hardware, a hacksaw, and a hand riveter. It would have been nice to have a bending brake, but I was able to bend by hand using a vice as long as the bend was perpedicular to the strip.
I'm only going with a single oil cooler for now as I want to minimize plumbing and potential failure points/leaks. Plus, I'd like to keep the other side of the bumper open for a potential cold air intake if I can find a way to get a duct from there to the engine bay.