Ok here is a pic of the 8.8 and the offset. just a pic no measurments. But you can start to add things up in your head now that you have a pic to see.
Dont mind all the junk on this axle, its being put in a Jeep apparently.
I'm doing the 8.8 swap also, in my openion, after you cut the one side down to match the short side you're close enough on your angles.. You're mounting the rear on leaf springs, if it were a drag car with ladder bars and a tight suspenion then I'd worry about it..