We do not commercially sell FiveM servers. But you can always order a VPS Hosting from us that is totally compatible to run non-commercial FiveM servers. The servers that you will run will be at your own risk.
How to Install a FiveM server?
Order a server with Ubuntu 16 OS. (Order VPS Hosting)
First get a key from http://keymaster.fivem.net
Login to your VPS as root. (You can use Putty)
Follow the instructions here.
We also do the installation for a very minimal one time fee. You can contact us for more details.