You should be able to just import it while playing on the server.
Did you save it as a blueprint while in singleplayer? If not, do that, then import it.
If you have no idea what I\'m talking about, hit N or I or something to bring up the menus, click catalog, and \"Create new entry\" while in your ship, name it whatever, save. Log onto the server, go to the catalog, click \"Upload entry from local\" and choose it. Then set permissions/ratings/whatever you wanna do, and you\'re good from there.