Your case will be the same. You could use factory mounts but, since you put that much money into your case I would protect the investment. Take a look at TT's Mighty Kong T-case mount. I am saving for one at the moment. As for specs, I could probably dig up the ones for my tranny but, you listed your gearing as 3.90 which means that you have a late model Sami. You have a different set of tranny ratios. I am sure that you could find them on the web...somewhere.
Anybody else know?