Space around my fan shroud?

I normally wouldn't just run out and buy a part on a whim that I really hadn't put much thought into using. But, I had thought about using a modern OE replacement fan designed for whatever car with dimensions and specs that would work for me. After seeing your suggestion for the Taurus fan assembly, I did some quick reading and a glance around for the cost on one. Wouldn't you know it, there was an auction on Ebay for a new one in it's last hours. I won it this morning for $47. So, I may or may not use it. The motor is not back in the car yet and I'm concerned that the assembly is gonna be a bit too thick. The only number I could come up with last night was just shy of 5". That seems awful deep. If it works, great. If not, I'm sure I can get my money back out of it. I like the idea of a single fan, 1 motor, with 2 speeds and a high cfm of 3,800. I appreciate the suggestion. Let you guys know how it turns out.
Does this mean I will need to use the OE controller and harness designed to be used with it?