I was able to get a little work in this evening
I reinstalled the pumps. Secured, safety-wired and connected.
I also installed the UAT. I am now running a leak test. There are three fittings which all can leak and of course a manufacturer defect of the unit. I don't rule anything out, so I test as I go. I made the mount for the filter but was not able to install it as I painted it, will need to wait for it to dry.
I let this setup sit for 30-mins to an hour.
I keep an eye on the air bubble, If it gets any bigger it is an indication of a problem. I obviously also check for wetness and smell.