Had hoped to fit some more panels but found I'd cut one a little too narrow so it doesn't fit snugly, and then also realised I missed a couple of spots last time I ran the grinder. I really didn't want to have to do more grinding but it looks like I do. I couldn't be bothered getting all my protective gear on and getting covered in crud for a half hour of work so decided to leave it until tomorrow. Last time I ran the grinder I ripped out the mortar around a piece of concrete I set in place, so ended up chiseling it out. Because I couldn't fit panels I filled the gap with the concrete strip again, being careful to make sure everything was set back enough that I don't have to run the grinder yet again.
I'm soon going to have to remove the extension cord that currently drops through where the ceiling will go, so I need to connect the cable to the breaker panel and install at least one power outlet I can use in there. Always onwards and upwards, even if fairly slowly...