Complete fuel system

Ok help me come up with a game plan. I want/need to start buying parts…

motor 400 currently…
727 transmission

No fuel tank, no fuel lines, no fuel pump, no carb…

I have stock parts in my purple 340 car, with 750 brawler. Works well, except for if you try to start it 15 minutes or so after you drive it, the starter has to crank a bunch because it has to get fuel back to the carb. Maybe it’s a lack of tuning as well…

Do I run stock parts again like tank, fuel sender (most are crap?), 5/16 lines and then 750 DP. or do I do an efi tank with carb like on the MotorTrend build. https://www.motortrend.com/articles/mopar-a-body-efi-fuel-tank-conversion-cpp/

Thanks