Three weeks into 4 to 6 week wait! Buying parts for the head replacement and engine install. So far: new head gaskets, new exhaust manifold bolts, turbo bolts, up pipe bolts, new turbo seals, new seals for the injectors, new seals for the oil cooler. Also bought new fuel lines from filter to each head, plus the hard lines from filter to flex lines on frame. Bought new flex lines also. New glow plugs and exhaust manifold gaskets. Additionally I've continued cleaning and media blasting parts.