IRS help? no not the government

[bob442]

Hey guys, I'm building a special in my 1996 F body for myself, right now all i got going is the rolling body, and a sweet emblem for motivational purposes:
http://i15.photobucket.com/albums/a351/bob442/006.jpg

this is about all i want to revial right now, other plans are one off rims,and the odvious from the emblem.

Anyways, i would like to put a IRS in the rear, and i would love to salvage something from another car, rather a c5 over a c4, i'mleaning towards the C5 because they have the upper radious arms, though a C4 might be more period correct for the year of the car(i'm building a special edition fake car)

This is a site with someone who has done a C4 swap, but i dont really like all the stress put on the half shafts.
http://zeuscatalog.com/jay_cutshaw_s_irs_swap

Now to what i need help with, i found out on my own that 21st century street machines had/has made a plate to adapt the rear diff to use of a drive shaft, on a C5 differental, but there site isnt even down, its none exsistant. So, I need help sourcing info to make this plate myself, or someone else who does, and any disscution about the topic is very very welcome to.

Thanks. Bob