If you can manage to get a basic OS install (dead simple) there are LOTS of people who can do the rest remotely. All you need to do is install a basic linux package and SSHD so they can log in remotely. It works great!
The developers of Asterisk Management Portal can talk you through the basic install and remotely do the rest. They provide a great open source product and this is one way they are able to make some money indirectly.