A few things to think about...
Option 1
-Stock tank (returnless)
-(-10) feed line
-(-10) inline filters
-Tripple hat
-Drive module (tripple pumps)
-(3) intank pumps
-bigger fuel rails (w/fittings)
-FRPP 80 inj ????
-NGK TR6 plugs (.025-.026)
Option 2
-Sump tank (return)
-external pump
-(-10) feed
-(-8) return
-(-10) filters
-fuel regulator (w/fittings)
-bigger fuel rails (w/fittings)
-FRPP 80 inj ?????
-NGK TR6 plugs (.025-.026)