Mercedes W126 IRS....anyone use this in a hot rod build?

I became the proud owner of 2 older 84' 300SD/Turbo W126 Mercedes complete IRS rear assemblies which seem very similar to the Jag as it is built into a cradle. It is a brute built aluminum IRS/LSD rear with a 3.66 & 3.92 and 4.02 ratio options, bolts up very similar....so should be much like a Jag remod install. Would appreciate any feed back....even if it is to tell me it isn't a not so good idea...but, please tell me why it isn't a good idea.....lol.
Thanks..
...and...I am new to this forum and have been reading a lot of the posts.....must say....there is a lot of good post questions with great answers. I have been on some other sites where they just bicker and pick on peoples ideas.....not kool in my book.
Thanks again...
Karl,
55insanity