Overall looks more reasonable than earlier. One suggestion I might have when making reservations is to add a few buffer days in your flights for unforeseen contingency. You at least have some rest days but I might throw in something at the end.
What sorts of things might that contingency cover?
-- Air quality. Eastern US have been impacted by fires in Canada leading to very poor air. Depends on the winds but your start from Toronto and ride down to Pennsylvania had bad days earlier this year.
-- Hurricane and torrential rain. You don't spend too much time close to the US Atlantic coast or gulf coast but hurricane season tends to peak towards start of September.
Both situations I suspect are possibilities but my guess less than 50/50 odds. If they do impact, then often a day or two delay can help a lot. So I wouldn't not do the trip - but would have some mechanism for covering when you have a fixed date to fly back, either some extra days (to spend in New Orleans at the end of not used) or some way of adjusting the finish.