I Hate To Ask A Fuel System Question...

I would recommend you wait. There is a new tank coming to market that I'll be switching to. Will be a better solution for less than $500.
http://www.tanksinc.com/index.cfm/page/ptype=results/category_id=146/mode=cat/cat146.htm

The bc Broncos piece has a pickup tube that runs to the bottom of the filter. You could make one I'm sure.

I'd love to know the difference between a 67-70 dart gas tank and a 71-76?