Alright so I have an idea. What if I used one these filters?
http://www.jegs.com/i/RestoParts/759...FVQ8gQodGvYCxg
I has a 3/8 inlet and outlet with a 1/4 vapor return/vent. If I bought one of these couldn't I hook that up to the engine bay return line and use boston's setup for the tank vent?