Porsche G50 / 930 gearbox

[rhrnldi]

I have bulk horspower and am looking at the G50 and 930 gearboxes.

Has anyone fitted a 930 or a G50 into an IRS pan?
Has anyone fitted one of these boxes sucessfully and converted the rear end to coil over / trailing arm suspension?

I have 400 - 500bhp twin turbo motor hence the tuff gearbox proposed.

Any suggestions, links, photos horror stories etc appreciated. I do not want to reinvent the wheel! Let me know the best way forward.