Sounds like you’ve done your HW.
Don't under estimate how crappy backside flying can be. It’s a personal thing for every one but If you aren’t a late night owl it may not be ideal. That’s the biggest risk of all. Not knowing if you truly can deal with flying the sort or long haul.
The most unfortunate thing is that I have a UPS friend in the exact opposite situation(lives in ATL and would love DL for that reason) who would prob trade with you if we could do that.