Hi Ashlee, welcome to the forum. KSB's are awesome! A few suggestions:
1. I use a UTH with a thermostat on one end of my 10 gallon. Keep it so surface is about 90 degrees (use a temp gun). Since it in such a small tank, I use a 75 watt bulb on a dimmer over the hot side, on a timer. Typically the UTH barely runs anyways during the day, due to the heat from the bulb which brings it to a high of 92, with it being a bit cooler (80's) on the cool side of the tank. KSB's can tolerate drastic temperature drops and be totally fine at 68-70 at night, but it is much better to give them a UTH as an option for nighttime.
2. GET A FEMALE. Especially if it is your first. Mine is a male and he hunger strikes like nobody's business. I have learned to understand what to expect but it may be difficult for a new owner to deal with. He also climbs a LOT and is always trying to escape. KSB's are escape artists so make sure the enclosure is secure.
KSB's are adorable, cute, derpy, silly, and all around I love mine. He sits buried under the sand all day with his little head poking out, its like where's waldo finding his head lol. Then at night he gets all sorts of active, and then freezes when he sees me thinking maybe I won't notice him being silly. You're gonna love having one!!!