installing a 100amp alternator

That most definately is the Mopar "large frame" alternator. As mentioned above, stuff like police cars, W series pickups, etc and other "big cars" are good candidates. One complication that will problably enter into it is AC

It SEEMS to me that I was actually able to modify either the brackets or alternator and got it to fit........had one on a small block in a Landcruiser (with a wench LOL)