Engine Mounts

We are starting to get the 318 ready to be installed in the Dart and I want to replace the engine mounts. The pricing seems to be all over the map. It's a stock 318 nothing more. I find them at the local Autozone for very little money and then I search the forums and see them for upward of $150. Any suggestions? I'm leaning toward the Autozone mounts considering the car is a driver, and will not be raced.
Thank you