So the plant has recovered as much as I have time to allow it. The leaves perked up despite the heat damage and the tops are doing way better...so today it goes into flower. Shifting it to 12/12 HPS for the next 10 or so weeks. I was going to just pull the tops for rooting and start over, but I have two more seeds and that will be the next grow.
Setting up the old tent for vegging going forward. Will take 6 cuttings from the next two and get them rooted. Will veg out four for the next grow and save two as mother plants. Should be able to keep a perpetual grow going at that point with 4 to 6 plants in veg for 10 weeks while the flowering tent has its four in flower. At each harvest, the four plants selected for flowering will be swapped in and the process starts anew.
I am really upset at the maladies...all self produced. The plant itself was doing wonderfully until I messed it up. This is one of those "note to self" moments in life.