I did email for about a year. Sucked shit so I cut my losses and closed the thing down.

My ISP used to block ports and have pretty strict anti hosting rules, but I moved to a place with more lax rules on hosting and set up a few things. When I moved back, I kept things exactly as I had them. They must have eased their rules because everything has worked and I've been back for 3 years now and they haven't dinged me.

Are all your VMs on the same subnet under the NAT? If so, you should be able to set up a reverse proxy and having ir route traffic on certain port(s) to your specific servers without needing a second ip. That, of course depends on the policies of your host.