500mil will get you the bookmarks to the connection of a single C13 Wolf Rayet. You may request a certain C13 but I may or may not have access to it. No other guarantees can be made once the trade has been completed.
Notice: Connections to these wormholes are sometimes unforgiving. Some may very well be 28 jumps through null. I will inform you as to such. It is important that you make it clear to me what you deem are suitable traveling conditions before we finalize the bookmark trade.
Please mail in game for anything further.