Steps 1 and 2 are ok.
On step 3 your gateway will be the default, as you don’t have any other available.
You will assign a couple of IP addresses to both ends of the VPN tunnel, for example 192.168.1.1/30 and 192.168.1.2/30.
If you set 192.168.1.1 on the VPN00 then for the static route you will use 192.168.1.2 as a gateway.