What's your ambient room temp? Unless very cold I'd think an appropriately sized RHP would be plenty to heat the enclosure. I use RHPs from Reptile Basics and easily get a 90 degree hot spot and 80 degree cool side.
I believe it is usually between 65-69 degrees farenheit the reason I was considering the belly tape because I know boss like belly heat so I wasn’t sure if it would be a good idea or not. Thank you for the advice and feedback!