SO you want he lowest cost you can do but still have the filtering and flow quality but don't want to pay for more than you need or the bling.
Do a ITP 5/8 tank mod
Napa 4770 base with Baldwin BF1212 filter Water Fuel sep
Run 2 3/8 hose out of filter base
Each hose into 1 of 2 super duty fuel pumps
Run each 3/8 hose out
Into another Napa 4770 with a Baldwin BF7633 3 mic nominal 7mic absolute * there are better filters but this will do.
Single 1/2 line up to engine bay
Into a T
One 3/8 line into each head front or rear your choice.
One 3/8 hose out of each head.
Each 3/8 into a Aero or Fuel Lab Hi PSI
Use your original factory fuel feed line as the return to tank line. Out of the regulator.
Attach a air hose line to T int Map
Reference 65 psi
are max fuel psi
at 20 psi
boost or higher and 45 to be the min on the regulator. It will create a boost referenced fuel pressure curve.
For exact parts I think Marty has a list he can send you. He posted it before.
Other than the tank kit $50 and regulators $130. The SD
pump can be had for under $50 from a salvage yard or $125 IIRC
new. The filters and base are about $60-70 total. The rest is hose and fittings. So you have $400 plus the hose and fittings which you can get from Parker Hydraulic store local or net/mail order.
This will support your power goals and give you complete redundancy should a pump ever fail. You would still be able to use it for DD until you get it swapped out.