You dont need UV for BP's but if your temps arent high enough you should add a light for heat. Just cut out a hole big enough for the lamp (and a couple of extra inches so you dont melt the plastic) Then put mesh on the hole and your good to go.
The first things I would do are get the tub, go to wallmart or taget and buy a human heating pad (make sure it doesnt have an auto turn off). The human heating pads come in different sizes and have 3 different settings so you can usually get your heat right. Once you have your tub and heat, put in a water bowl and measure your heat and humidity. Then start drilling holes accordingly. Once you have enough holes to where your humidity and temps are where you want them, you should be good to go. Keep in mind before drilling that lights lower humidity and you can always drill more holes, but you cant undrill holes you've already made
Hope Ive helped...

ps I keep my heat on 24/7. I let my house drop a few degrees at night so their heat drops as well.