Big Brain Garage '73 duster build

i have a 73 duster roller i got for $400 bucks! i would say immaculate condition, 2 floor patches and thats it. this thing is solid! i am piecing this thing together with what i can find and have on hand. all my $$$$$ is currently in the engine, most expensive part is the MSD ready to run dist. kit and the headers! as of right now i am in wiring mode, i have a harness from a '75 that i am routing and splicing in.
engine is a 5.2 magnum from a '98 dodge truck. JEGS heads, the old ones were cracked, comp cams roller .512" lift int/exh, .210int/.220exh @ .050, 112 LSA, RPM air gap intake and 600 CFM summit carb. ceramic headers.
Direction of the build, not really sure. first things first, get it on the road. i already fired the engine, i have no idea if the trans works (A904), i paid 100 bucks for it and carried it out of a barn. opened the pan, looked clean, installed new filter and shoved it in. 7 1/4 rear end, i have a 8.8 to install at a later time. i want to drive it first. i have '75 duster parts car with /6. i took the disc brakes from it, got a new master cyclinder and still have to plumb entire brake system. fuel system will be a clicky clacky from the tank to the carb. currently open headers, again, i want to get this thing running and driving! more pictures to come later and i'll update progress when i can!
feel free to leave advice or combos you ran in the past! this is my first mopar and i'm in uncharted waters!