Thanks again for the kind words. I would appreciate hearing from people about whether freezing is an issue I should be concerned about. I don't think it would take a big heat source to keep the bottom of the tank above freezing...maybe just a light bulb since the walls are insulated. I put in a piece of 1/2" copper tubing through the foam insulation that elbows down outside to use for condensate blow off. You can just barely see it behind the trim on the right side of the first picture....but it isn't plumbed yet, so I'll try to get some better pictures of it when I get that done.
I painted the outside including the trim. When I put the plastic trim piece around the air inlet, it didn't look right...so I decided to trim it out like the rest of the compressor enclosure. I thought I had some pictures of the outside when the painting was finished ...but I don't... so I'll have to add them next time.
The compressor hook up is made with long electrical and hose connections. This allows me to move the thing around without having to mess with the wiring and it allows the compressor to be positioned so that the hose slopes upward to the building. Rather than mounting the compressor to the floor using concrete anchors, I installed rubber insulator pedestals that have rubber traction material on the bottom. It works perfectly and doesn't need anchoring.