Auto to manual conversion
Probably the most encompassing part of doing the swap is installing the floor hump. Do you have access to a welder and know how to modify floor boards? The ball pivot mount brace needs welded to the inner fender of driver side frame rail. With your 318 it might be drilled and might not be, the use of a Magnum engine roller pilot bearing that goes into the torque converter register is a must if it is not. You'll need to trim the input shaft on the trans by 3/8 to 1/2" if using the Magnum roller pilot.