You have raised some questions.

You are using a thermostat correct? If not this is your first purchase period.

The second is what are your temps?

No body can tell you what you will need for heat unless they have the exact same conditions the tank is in. In other words in the same room. The conditions in your living room or where ever the tank is are not the same as mine or the next persons there are simply too many variables.

The temps (warm, cool, and ambient) are the only things that will tell you if you need a secondary heater or not.

Log hides are not the best they often are too open, do you have two hides or just one?

Has 'poprocks' eaten and does he/she eat regularly?

Fake plants can be bought from dollar store places, avoid any that smell strongly. Vines are a bit harder but exoterra and zoomed (others too these just came to mind) make vine products that use suction cups to hold them in place that is a pet store or on line. Avoid hard closed shapes like skulls with open holes for eyes. If a snake becomes stuck it is quite serious after a meal the stomach is not as compressible and on rare occasions a snake can become trapped and cause them selves harm.