I'll add Boaphile Plastics into the mix as well.
Jeff Ronne, the Boaphile, generally has a 6 week +/- lead time and makes a good product. I have 12 of his enclosures.
They also come assembled, and have everything you want installed by him (RHP, heat tape, etc.). He's soup to nuts.
He does not do well with emails though, but will happily talk to you about your options.
http://www.boaphileplastics.com
You can call him on the number on his site.
He can install locks with keys as I am sure the other PVC manufacturers can as well. I have nothing bad to say about AP or Reptile Basics, I just have not had experience with their products. I have had good experiences with Boaphile. I know many people happy with AP as well.
Regarding the ex - I'd have a hard time imagining loosing custody over a Ball Python, but I've seen stranger things. Not sure how well kids keep secrets.
Finally, if you just got Hunter, let him settle in for a bit and make sure he eats a few meals for you before you start handling him.
If he eats F/T already, that's great. If you have questions on defrosting and offering F/T prey, just ask, and we are happy to help with that or anything else.
Good luck!