You can order the Kane Mat from https://www.tortoisesupply.com/kane
Radiant heat panel from http://www.reptilebasics.com/rbi-radiant-heat-panels
And the thermostat here: https://www.lllreptile.com/products/13883-zilla-1000-watt-temperature-controller
Sorry to keep bothering you. Donatello's enclosure is 4 ft x 6 ft and 11 inches tall. Where he'll be sleep is (2 ft x 1ft and 4 inches), also 11 inches tall. It's an open enclosure that is in a 9ft length x 11 ft width and 7 ft and 5 inches height room, with room temperature being 75 to 78 degrees Fahrenheit. I am thinking that the 40 watt radiant heat panel will be enough and the 18 x18 46 watt Kane Mat will work. What do you think?