My BP questions/status

[tttaylorrr]

But how can he digest his food if there's no belly warmth?

your temperatures fall within proper husbandry range for a ball python; your snake will be able to properly digest its food without needing to be directly over a hot spot. when a beep needs to seek out some place warmer, it's usually after a meal so that's why belly heat is provided. they don't always need it, but they have the choice to thermoregulate as they please and that's what is important.