Need help 1965 Barracuda 273 2bbl carb

Me and my dad had bought a 1965 barracuda with a 273 engine that was partly taken apart its missing valve covers and the 2bbl carb. So my question is does anyone know where I can find these parts the carb I believe is supposed to be a Carter 3843. Also for some reason the whole exhaust system is missing from the manifolds back.