Hey Brent_J
I think the only thing we have currently that can do the conversion you are talking about (running configuration of a tenant --> AS3 JSON) is our Automation Config Converter. Last time i utilized it, it had limitations on what could be converted.
Github with Docker Deployment Code.
https://github.com/f5devcentral/f5-automation-config-converter
Documentation on how to use Automation Config Converter
https://clouddocs.f5.com/products/extensions/f5-automation-config-converter/latest/userguide/getting_started.html
Have you checked out this utility? Or are you looking for something different than this?