Get the T8. If your house or the room it will be in is not a constant temperature year round you may look into a RHP to heat the enclosure. You can get the flexwatt heat tape they sell or another brand to offer for under tank heating. The RHP is always attached to the top of the inside of the enclosure. Alternative to pro producte is reptile basics.
Don't get the screen it is not needed. Definitely get the LED option for $40
If you go with two heat sources get a herpstat 2 to control them. You will never need more than two heat sources.