Looks good, just what I was considering, at the moment a 12” fan has been fitted as a blower, but it blocks a massive amount of radiator off. It’s on a switch, but it needs to run even at speed otherwise it blocks airflow to the radiator! Plus the temperature gauge is over reading which doesn’t help, new sensor on its way & then check the gauge if required, then I should have a better idea about the fan & away forward, but I am leaning towards your solution, nice to know you can get enough room to fit the fan.
Need to sort this before I pull it all apart.