Space Ship building pack??????????

I’ve seen people build some cool ships on Gmod.org such as this http://www.garrysmod.org/downloads/?a=view&id=95448
but the Adv dupe wont work because im missing something and i have no idea where to get it!
I want to make my own ship, It says in that link that i need the latest spacebuild svn?? ive also heard of Sbep whatever that is lol
Can someone give me a link to some space build addons?

http://www.tezzanator.net/programs/garrysmod-auto-svn-updater/

Thanks :slight_smile:
That second link was perfect