Shouldn't need two lights over a 10 gallon. What I did when I had a tank was I put the heat lamp in the middle for ambient temp (which also boosted the cool side surface temp a bit) and had an UTH on one side for the hotspot. I'd play with finding the right position for your heat lamp before getting two. May way to throw some eco earth or cypress mulch in there for something a bit more comfy for him and to help with the humidity. I think it's a good setup until he gets bigger though. Congrats and welcome to the forum! (and the ball python addiction as you'll quickly find out)