Gas price going up // Rethinking the new project car

What would I do?
5.2 Magnum with stock EFI and stock Magnum exhaust manifolds, dual exhaust. 32RH/999 transmission- lockup convertor, but no overdrive- so no crossmember/floorpan mods. Direct bolt in to replace the 904. Deeper first gear, and lockup gives a bit more efficiency on the highway. 3.23/2.94 gears in the rear. Maybe a small cam, but I'd start out stock and get the bugs ironed out first.
5.2 gets you a nice street driver and EFI keeps the mileage and driveability where you need it. Plus parts are available everywhere.