For the T8 I would suggest the reptile basics 40 Watt mounted in the center of the cage. it will maintain the air temperature at 80 degrees and the flexwatt will provide the basking spot on the right side of the cage (default flexwatt placement by AP)

When you order the cage they will send you an email and you can tell them exactly how you want it, or you can call them to order it instead and tell them then.