TCI IFS in 65 Mustang with Coyote, measurements please

[bd8134]

I am working on a 65 Mustang which is using a regular 302 small block and TCI IFS. I am planning on modifying the the crossmember now so if I decided on an Coyote engine, that part would be easier.
I do have some measurements on how much needs to cut from the TCI crossmember but I am missing some key numbers and I was hoping you can help me.
How much does the crossmember need to stepped down and in?
I have attached a picture of a Coyote modded crossmember, mine has none of those notches in the center.