Need D.S. 273 manifold or substitute

The magnums extend pretty far back on the passenger side and go about straight down on the driver side but dont hit the starter? They are supposed to flow right up there with the 68 340 logs for 10% of the cost. There are 2 sizes: the early year 618-619 casting had a 1/8 larger outlet. Cap that EGR fitting. Plenty of room for a standard oil filter!
magdriver.JPG magpass.JPG