How close, is to close for rad fans to water pump pulley space

Well, I am mocking up radiator and electric fans as I get ready to do the wiring,

Car 66 barracuda with a 408
22" Champion 3 row with dual 10" fans. Before mounting - I already know it will not fit (damn it).
I reverse the fan shroud and use 1/4" spacers to allow some space between the shroud and radiator. The fans are a little recessed - so over 1/4" between fan blades and radiator. I am comfortable with this

The fans do clear the water pump pulley, but just barely. See pictures

Anything I should worry about?

The 3 row is 2.5" thick and the 2 row is 1.75" thick - did I reach to far for the additional cooling

thanks