I posted 2 photos today.........Damon Tuscany aux. fans.
I chose to run a manual switch from the dash, just in case. The alum. angle is 1 1/2" by 1/4" thick, all connections are bolted with lock washers and Loc-tite on the threads.
When coach is switched off the fans run for 2 - 3 minutes just to cool everything off.
Temperature probe was installed just after these photos were taken; it's mounted high on the right [ just below the Hyd. tank ].
So far the results are Fan-tastic.