There are a few cheap options, if You dont know what you are doing, I recommend using a shared pack already, and if you like it, you can then look for a dev or even a custom pack. For a full custom pack u will lose easy 500+ euros, there are a few other options like sunrise for 150 or so, but then u wont have a unique project.
Setting up your server isnt hard, there are a lot of tutorials here, dont waste your money at start, just play around with what the forum offer then look in improving or upgrading it.