My exhaust manifold is very badly rusted to my cylinder head and i was looking to just buy new ones as I dont think I will be able to get the bolts out. Im trying to spend as little as possible. Does anyone know where I could buy these parts used? Even if someone has a part car that they dont mind selling these parts from. Please post links and prices if you are willing to sell. (My car is a 1973 ford maverick)