Yesterday evening I picked up my replacement tank with a new hole drilled in it. This time, everything seems to have gone smoothly.
I have the plumbing for the overflow box and intake ready, just need to fit it on and silicone in place. The other stuff that arrived yesterday were my chinese knockoff refractometer (for reading the salinity level) and 200 watt heater. The refractometer looks good, but I want to take it down to the shop and maybe see if they’ll let me test it.