So the no chill worked fine rubber still intact the next day. Decided not to ferment in keg, mainly because lack of headapace. I dumped cool wort into some plastic and one glass carboy. The beer is already in bottles and kegs with priming sugar!
Thanks Day_tripper for the warning on hot liquid in carboys! I'm glad I didn't use a glass carboy.
I think one advantage is the hot wort will sterilize the inside of corny and it's sealed so one could theoretically hold the sterile wort in the sealed corny for days if needed. I wonder how long worth would stay good if sterile and kept cold?