Thank you all for your help! I got the regulator today and hooked it up, and put the lamp in the middle to get some even heating to keep the overall temp to about 80. It's a double dome so it disperses heat rather than making a concentrated heat spot. Also put her a half coconut, and a closed in log in her tank, she likes the log but I don't know about the coconut yet. She has yet to try out her new heat spot, but I think I finally got the temperatures where they need to be. Next step: fix the screen top to keep in humidity.