So I made zero progress this weekend. I worked Saturday and left work at 5:00 not feeling well, and ended up staying in bed, sick as a dog, most of Sunday, and missed work Monday because of being sick too. Feeling 50% better, enough to work today (tuesday). I'll get to spend some time in the garage tonight, finishing the reassembly on my heater box (I filled the repaired core with water the other day, to check for leaks, so far so good).