There are a couple of things that I notice
- given the address assigned to G1/8
ip address 100.*.*.10 255.255.255.252
the route that you configure
route outsideVPN 0.0.0.0 0.0.0.0 100.*.*.1 254
is not in the same subnet as the interface address.
- with the route statements configured all traffic will use the G1/1 with G1/8 as a backup. If you want vpn traffic to use G1/8 then you need route statements for the remote peer and for the remote subnet using G1/8