I set this up a couple of years ago, that fitting for the fuel line is $40.
http://focus.c-f-m.com/cfmfuelpressu...mustanggt.aspx
I screwed a schrader valve from an old 2V fuel rail into that fitting. I leave the fitting on the car, then I have a hose that screws onto the schrader valve when I want to drain the tank.