318 eng. mount question

I'm kind of confused - I have a 73 Dart Sport, 318 car, has no mounts with it (but where they hook into the frame is there), putting in another 318. I look up parts for it & see different mount styles and odd extra pieces. Can anyone tell me everything I'll need, engine block to frame, and hook me up with a rec. for where I can get good quality pieces? I do appreciate it! ~Scott in TX