Stock 360 Upgrades for Crusher Cuda?

I thought I could build the whole car for 3K. Ha... That didn't happen.. So, then I said 5k. Ha... I'm 6k into parts collecting in two weeks. The car initially was $600. As my wife says.. It's a Dan project... Still need the engine upgrades including carb, rear rims, all four tires, radiator, driveshaft, and other small bits. All of the Mopar parts have been found. Hoping to be under 9k all in. Not the cheap win I wanted, but can't turn back now.