Search the 48-56 F100 section. There are several people there that are doing the IRS swap with pictures. This way you can see a finished install. I believe that the 53-56 frames are the same width but someone will correct me if I am wrong.
I'm putting a Jag IRS in my son's truck right now but it would install different than Garbz T-bird IRS. I assume that it is a T-bird.
I have the forward tilting hood kits almost ready for the 67-72 Ford trucks if you want something different on your truck. I need to get the first one out there so people can see it.

Kevin