Based on this image of what a WJ configuration looks like you have a lot of fabrication coming up if you are insistent on having it.
AC compressor needs to be relocated and custom lines made. You will need to run an electric fan setup. You will need to come up with a way to drill and tap all the mounting holes, as well as fab up brackets.
With all that being said should you decide to embark on this long journey be sure to document it. But my big question here is... WHY? The current setup has worked for decades and other than an annual/Bi-annual adjustment it's relatively service free. Less moving parts to fail and even more relevant, it works!