It does present itself nicely. But does it suck? lol I agree, that missing lower pan may help you quite a bit. It should keep the air focused at going thru the rad instead of dumping out on the ground.
I think your electric fan setup would work better with one big fan as opposed to 2 smaller ones. At least 25% of your rad is not covered by fan. There are fins over the open areas of the rad making it even more difficult for the rad to breathe.
We used to take a piece of square cardboard, cut out the circle for the fan and place over the front of the rad. The entire rad would be covered with cardboard except the circle. It would not overheat, but it would raise the temperature of the water in the rad IN WINTER. That might be your winter setup. Can you get a bigger fan? My fan on my 454 is enormous.
What's the cfm of your fans?
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88 restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD LX Lawn tractor 17hp (my daily driver) 2006 Tundra (another driver) 1988 Pace Arrow 32' 454 (SOLD) 2017 Murano (wife's car) _______________________________________________________