I've spent some time tonight upgrading my server to Ubuntu Xenial 16.04 along with the latest release of Juju 2.0.
In addition, I've moved all my services into charmed applications to be deployed and managed by Juju.
You can easily run the same setup on a relatively small Digital Ocean droplet. The one I'm running on is there $20/mo and it seems to be working out pretty well.
To deploy with your own applications run:
$ juju bootstrap localhost mysites $ juju deploy cs:~adam-stokes/dokuwiki $ juju deploy cs:ghost-8
The Ghost charm is currently in the Edge channel and is just waiting on the review to finish and it'll be pushed to the Stable channel automatically.