Hi...
Yes, I think hiring someone is a bad idea.
Reason being without knowing what kind of disease they have faced in their own flock or WHERE they may have hatched other eggs from... things like certain diseases can be inside the hatching eggs and pass to every subsequent hatch from that incubator.. is my fear. And for me... I WON'T put unknown eggs in MY bator risking the future of my own flock.
https://www.ncbi.nlm.nih.gov/pubmed/21809762
I hatch FBCM.. and they are NO harder than any other... just harder to candle (So I only candle at lock down to see if there is full development and air sack or blankness). Also, a power outage can happen to anyone. It can be dealt with if you are home and aware. If you are going to be away, make arrangement for a neighbor to call you if it happens. Use heat sinks. And don't set eggs when you know you're gonna be out of town for a week. My days aren't distraction free, but I KNOW I have the time each night to do what is needed. Yes, I think you spent too much for those eggs and at that price I would consider getting chicks when taking into account hatch rate after shipping and male female ratios and stuff. I hope they were at LEAST NPIP certified. Good for you for looking for good quality birds, I hope they are!
Make sure to rest your eggs before setting since they are shipped.
ttps://
www.backyardchickens.com/threads/incubating-w-friends-come-hatch-learn-chat-w-hosts-sally-sunshine-bantychooks.1046313/page-5385#post-16540512
Run a "dry" incubation. I go around 35-40% humidity days 1-18 and 60-65% through hatch. Regardless of ambient humidity, that only effects how much water it takes to achieve your target inside the bator. Move the eggs to a new location inside the bator daily to ensure even development and combat temp variances.
An invaluable resource...
https://www.backyardchickens.com/articles/hatching-eggs-101.64195/
With some dedication... I believe you can do just as well as anybody else.. even if they have experience!

I'm totally willing to help you try along the way and be as much support as possible, as I'm sure many others here will also.
You've always got me learning new words!