Site to Site Dial Up IPSEC VPN / VIP Pools

I have about 20 Cradlepoints with DialUp (Dynamice WAN IP On Cradlepoints ) IPSEC Tunnels that are working just fine. I manage those and they all have seperate /28 Networks .  All reside under Grouped Policy and Objects and traverse just fine

I have about 5 additional Cradlepoints that I dont manage but need to stand up IPSEC Tunnels with.

Those 5 Cradlepoints all use the same LAN Net on each  (192.168.1.0/24) .  They may consider changing the LAN Net on those but still not withing my planned IP Blocks that i use for the 20 I manage

I feel like I can need to do this with VIP Range

Having already read this article http://cookbook.fortinet.com/vpn-overlapping-subnets/.

I am looking for some assistance on more specifics and suggestions rather than using a wizard

Thanks