Vacuum Leaks and Engine bay hoses (Braided and fuel lines)

While looking for vacuum leaks which could be the main cause of the rough idling and stalling of my 240z i have decided to replace all of the fuel line and braided hoses in the engine compartment.

I would like to buy high quality hoses. Does Black Dragon sell them? They do provide a good service. But i am looking for long lasting hoses. Which are the ones that are preformed and would need to be sourced overseas?