You might want to reverse your train of thought.. unless your fond of selling on ebay.. Start with how your going to tune it for a turbo system. Don't buy into "your shops" "oh yeah we can tune that like a piano". Have them hook up to the computer and formulate a game plan from what they can access and modify in the ECU. Get past that wall and your home free. Otherwise you can already find threads and pictures of rear mounted turbo's that dead ended.