Getting ready to swap a 5.7 into my 73 Dart Swinger

I have looked thru this thread because I have wanted to put a 5.7 with a 6 speed automatic transmission into my 68 Dart. I found the 2012 combo at a swap meet. I had hoped that this had been done enough times already that there would be easy to find info to complete this. Apparently that's not the case.
This is just my personal project taken on in my spare time the info is all here amd on several other websites and articles. If there is some info you are looking for maybe ask a question good luck with the swap its a bear.