Need help to design a fuel set-up

Here is what I have - 1974 race car body - 1973 2.0 liter very stock inside - pair of p11 (40) solex carbs - 16 gal fuel cell - and a VERY TIGHT BUDGET -

I think I want 2 cheap fuel pumps on board - flex lines thru the heater duct area - and CHEAP - the fuel cell has a -8 an outlet -

how many feet of what size line - how to put 2 pumps in series - how much pressure - how many GPH flow rate do I need - cheap parts I can use ......

this car is for the www.chumpcar.com racing series of low cost, LONG endurance races -

912-210-0175 9-9pm est

thanks for y'alls help - live in Savannah but NOT from here