How can I combine multiple IP pools from different locations

I want to know if it's possible for me to use IP blocks I have assigned on various virtual machines around Europe on a central server. For example VPS1 would have IP block 1.1.1.1/24 and VPS 2 would have 1.1.2.1/24 if domain1.com resolves to 1.1.1.x then it will go through VPS 1 > cPanel hosted in another location. A bit like this: https://i.gyazo.com/00f4a080d0270ae3d0bbbada62c88230.png
The three VPS will only be a tunnel/proxy no files will be hosted on them - How would you go about doing this? I presume each VPS will need to have the cPanel DNSOnly installed on it too. The /24 blocks are just an example of IP blocks I already own.