Hey, Brandon with JumpCloud here.
I'm not in any sales capacity, but I'll second that suggestion that on the surface, this looks to be a good fit for a JumpCloud deployment.
How that would look: Both AD and G Suite would integrate with JumpCloud, and JumpCloud would become the authoritative source for the user credentials in both — a password change in JumpCloud would smoothly result in a simultaneous password change in both. Suspend or delete a JumpCloud user, and that user is simultaneously locked out of both.
Then, you'd point your wireless access points at our cloud RADIUS servers (we have them in US East, US West, EU and APAC), and each user's same credentials would at that point apply to RADIUS access too, no need for an on-premises RADIUS server.
It's free to try at https://console.jumpcloud.com/signup and we have a pubic Slack community at http://ow.ly/seTs30qO7WX . Hope that gives you something to consider.