..you are in Hospital on your back ready to go in for Surgery and you start eyeing off the o2 bottles and regulators and consider what sockets would be required to re-purpose them for your new keezer project.
I did a dodgy DIY drip tray (inc. drain) with pine, aluminium roof flashing, old gas dip tube and a $3.50 ventilation grill from Bunnings mounted under the surface of my keezer.
Yeah, smart setup.
I have a similar set-up but no Solar, I just rely on the alternator charging up the battery while driving each day and I take along a spare battery in the tray.