Wow! That is tight. I bet it'll be fun getting the blower belt through that gap.
Have you powered that thing up yet? It'll surprise you!

Did you cut that 2" wide tab on the radiator side of the fan? It's horizontal behind the fan bulge. It pokes out farther than the rest of the shroud. It might buy you another 1/4" or so.

I just landed another fan with that offending tab broken. There may be one or two more in the shop. I have to wait until the insurance company agrees to buy new fans. My guys know to keep an eye out for broken tabs. They tell me if they have one.

I flush mounted mine to the new radiator. It's actually inside the shroud mounts. I'll have to get some new pics and post 'em. It makes for a very clean installation.