I wanted to come back and let you know I managed to get it in world..
I had resorted to installing CPM mod to help me do it but that didnt even work and now im stuck trying to uninstall it but after i restart the server after deleting the files they all seem to come back brand new -.- lol
but besides that the prefab is now in world lol.. kinda scared to run the chunk reset command near it though -.- lol