74 Duster 4 banger Street/Strip Build

I’m going to need a new floorpan. I know from 2 other friends experience that the AMD unit is a very nice piece and fits perfect. For their builds they worked great, but for mine, I’d like to find something cheaper, as I’m going to be cutting and hacking on it anyway. Thoughts?
Also, I need a new crossmember.

Come up here with a car trailer and take what you need from the Dart. Might not be worth it with the gas costs though.