MagedUpR/T - I think you are about to be a lot of CEG'ers hero!!
I'll go ahead and tell you now, that the consensus would be a 3L turbo on an AWD chassis.
As for your tranny, your best bet would be to send it off to Terry Haines if you aren't going to go AWD. He is the mastermind behind these transmissions, and you will find a TON of info on him, his company, and his background with a little searching. You have 2 options on the LSD, either the Quaife(which Terry offers), or the Torsen.
I notice that the search function is nothing new to you, as you've already recognized Keith as the guy to go to at ADC for your turbo kit.
Good luck modding the CSVT, and keep us updated on your project. Don't be afraid to ask questions, there are a LOT of knowledgable people here!
Mark
