I'm kind of late to the party but if you really want HOTs based on the unique colors and patterns they have ( i really like eyelash vipers), then go for it. As for finding a mentor, good luck with that for reasons already mentioned. My advice would be to watch and read as much as you can about the species you want. Then make sure you have the caging set up along with all the equipment you need. Also i would order a bite protocol folder from Joe Pittman at the Florida Snakebite Institute and also call your local hospital and see if they have antivenom for said species or you acquire it.
I have just started messing with HOTs and started with a couple Gilas which i have wanted since i was a kid. I researched for over a year before i actually bite the bullet. They are quite different than venomous snakes but still demand respect.
Also check your city/county/state laws to make sure they are legal. Unless you have your own home, I doubt you will find many apartments that will allow you to keep HOTs.
And remember, it only takes one 'oops' moment to possibly stamp your time card off this earth.
I personally will probably never own HOT snakes although I am pretty tempted for a beaded lizard or two lol.
Oh and i forgot, find a vet who will deal with your HOTs when you need to get check ups done on them. Like i said, I took over a year to actually bite the bullet for my Gilas but i made sure my vet as well as a couple other vets in my area could/would see my Gilas for check ups when needed.