I would at least fab up some gutter flashing, etc to help direct air through the coil. I actually considered mounting mine in a funky spot, but the spots I was looking were all low (the 94 is dropped so much that I cant get a jack under it) and I was afraid of debris hitting the cooler.
I would note that if you have a stacked plate cooler (or one with a thermostat), it should help to regulate temps (some say trans/hydraulic fluid cant be too cool. I dont know about that. But it is hot-as-all-get-out where I live, so that was NOT a consideration for me. I still retained the stock heat exchanger in the radiator).
also if remote mounting the cooler, I would consider a fan for the cooler (which really should have a fan switch, ergo more wiring and weight and space and PITA).
My two cents.
Since we have trans people here, does anyone know how much heat the stock 'cooler' in the radiator removes once the car is at operating temperature?
good luck.