Exactly Cheesenugget--the vet said by her next shed we should know how extensive the damage is, and her eyes were cloudy when the burn happened, so it should be any day now. We are doing pain meds daily and antibiotic injections every 3 days, with daily topical SSD and Clorhex flushes. I have a follow up in a few weeks but of course will take her in sooner if I notice her deteriorating. I will keep y'all posted.
Can't edit my previous post, but I went ahead and got the 80 watt RHP with a VE-300 thermostat and 2 of Reptile Basic's jumbo hide boxes. I read in their recommendations that the 80 watt would work best with the dimensions of my PVC enclosure (31.5 inches between the square dip for the heat lamp and the end of the tank, 23.75' deep, 18' tall, and it's actually 48' long, not 72' as I originally thought). Thanks all!