Wendy knows her stuff! I've got a corn from her and they are the best eaters
I hope you meant to say thermostat.
Anyway, since the ambient temp for you is 80-84, you don't need any additional heating. If you are using heating to achieve that, just make sure heat mats are on a thermostat and lamps are on a dimmer. I offer my corns a hot spot of about 85-86* because my ambient temps are in the 70s. I have some of my corns in a rack and they have belly heat and one is in a display tank and she has a heat lamp. Corns are pretty hardy.
I would put him in a deli cup at least for the first few feedings. After that, he should just take it from you off tongs. I feed off the Munson plan (you can google it) and I have healthy growing corns.