Question Connecting two locations

[javon]

I would like to connect two locations over the internet. The first location is some ISP where I have a rack and C class IP addresses. I don't have my own router at ISP so these IP addresses are delegated on the router of ISP. Second location is the office. I would like to use C class public IP addresses in the office. There is no direct line between them. The office is connected to the internet by different provider. There is a router with one public IP address.
My idea is to have VPN connection using Wireguard for instance. One VPN server will be placed into the rack at the ISP, second one will be placed behind router in the office. Maybe there could be HA proxy which will balance a load between servers. And there will be physical server with some virtual servers on it where I need to use my public IP addresses from the ISP. I prefer not to connect this physical server to the office's intranet because of security reasons.
But I am not sure if this solution will work and how to configure it. I have basic network knowledge but this too complicated for me. There is a lot of question. Do I need my own router at ISPs? Is it possible to have such configuration which enables public IP addresses inside the office network or they will be configured at VPN server at IPSs and traffic will be forwarded to some private IP on VPN server at the office?
Can please anyone help me with setup? I attached simple diagram
Thanks a lot in advance.

 

[SamirD]

There's a lot of ways to connect the sites, but the more important question is what do you want to do? I'm not clear on that except that it sounds like you have systems at the office that you want assigned the class c addresses at the isp?