As others have mentioned, using a heat mat is recommended for your hot spot around 88-low 90sF with ambient temps (basically the room temperature) in the low 80s. The lights aren't necessary, the bp will probably prefer the natural lighting of your room or darkness. I have all of mine in darkness and they eat, shed, and poo without issue.

On the mice subject - I was buying my "Gourmet" f/t from petco and noticed the poo and blood. Overall they were bad quality, fell apart or smelled and the price was ridiculous. Now I breed my own or buy live although all my snakes are f/t. The quality is a lot better this way, no smell or falling apart, and my feeding rates have greatly improved. But I'll agree that I've noticed my snakes respond more quickly if there is a bit of blood.