seeking infor on pueblan or mexican milks

[latazyo]

hi, I'm looking to get my first snake and I'm attracted to these two snakes

I have a few questions though
1. do either of these snakes have any sort of UV requirement (I ask becuase my experience with reptiles is in turtles/tortoises and chameleons, and they do have UV requirements)
2. are either of these snakes a good beginner snake?
3. if you had to choose between the two, which would you choose and why?
4. do either of these snakes have a tendency to bite?
5. where might a person find these in the United States to purchse (not catch)

thanks in advance if you can offer any assistance to my snake finding adventures