Possibly in the market

[Bogertophis]

Would you all recommend overhead heat sources like a CHE in addition to a UTH? Our careguide recommends 70-75 for an ambient temp, which I can maintain without additional heat sources, and can creat a hot spot with a UTH, but wasn't sure if maybe overhead heat for these guys would be an enrichment addition, so to speak.

It might depend on specifically what you're keeping (like a desert king as opposed to another type), but the ambient temps. in my house has rarely 'required' overhead heating- at the most, a daytime light (or CHE) that's dimmed & used seasonally. Mostly I rely on UTH- that's the best for kings or milks. You can always try a warming light during the day in winter- see how they feel about it. As the days get shorter & if there's a bit of chill, adding a dimmed light w/ warmth (by day) can improve their appetite -but it's not usually a problem anyway.