How to configure PBR in CCR2116-12G-4S+ v7.8

Hi,
Could anyone advise the configuration for below setup please?
MK_v7.8.png

What happens if WAN1 or WAN2 become unavailable for whatever reason ( assuming two different providers of course ).

The interweb grinds to a halt, the family descends into chaos, and Koemleang gets verbally roasted! :laughing:

Attempting to elicit a full set of requirements, in terms of any failover expected. any port forwarding to servers on LAn, anY VPNs incoming,
Type of WAN connections private IP or public IP, static or dynamic>>