Final installed the coil to the frame with stand offs and zip ties in 8 places and it is very solid.
Final attached the input fitting at the pump and started fabricating the short tube that attaches between the filter cover and the output of the cooler so the filter cover can be removed without bending the cooler coil tube.
This short tube is giving me trouble since it has a 90 degree bend and is too short to bend before flaring the ends and difficult to make the bend tight enough once the flares and fittings are in place. I will start on my third attempt at making this "jumper" tube tomorrow.