There is one server out there but I am not remembering the name. I think it was Freelancer Universe. Was vanilla with the option of buying a mining ship, transport and armored transport.
That was the only difference. They had a shakeup a few years back and not sure where they ended.
Freelancer Discvoery si heavy (and emphasis on the heavy) role play server that does have expanded content but it is high quality. Original ship models with detail and original textures designed to stay in the theme of Freelancer. The role play is a bit obsessive there and the forums are a steaming cesspool of player bile and complaints against other players but it is actually a great server with good numbers of players.
Expanded beyond basic freelancer. Lol--you realize this is "Sins"?