Post images at imageshack.us. Great site and it's free.
I love the idea of this, but to hear it's on a DD has me worried. Not about the end result, but the time/money to complete this swap. There is WAY more to this than you think, so tread lightly before tearing down your DD and ending up without transport for months.
I'm part of a race team myself (compete in the SNORE series) and I can tell you that this isn't a quick job. On top of just making it fit, you'll need to provide major strength to the unibody and other areas of the XJ as well. Toss a cage in for sure too! Not as much for safety, but to give your XJ a chance to survive the body twisting power that thing is going to produce.
I'll end with this - it isn't always the guy with the most power that wins a race, but rather the guy that can USE all the power that his vehicle produces.
Anyway, just my .02 on the subject. It sounds killer and I want to see it done, just make sure you're up for the complete challenge. Good luck!
Cheers!