Hey Camtrains, I know it has been a few months since you post this but yes, you can use this mine no-ip.com. The thing about no-ip is you just need to your computers internal and external ip addresses. I use no-ip with the BevoTechPack server I host for me and a couple of friends through MineOS. If you need any help setting that part up just let me know.
On a separated note, does anyone know if you can install packed through the Webmin panel that allows you to create a public filehost so I can distribute a couple of files to my friends that they would need?