If you are not a dedicated gearhead, with a shop and resources, plan on paying someone to do the work, or just buying the car already sorted out with what you are looking for. If you want a supercharged setup, sell your Crossfire, and find an SRT6. If you want to do a swap, then read up on a V8 swap. No more or less complicated than a supercharger swap, and certainly will be more reliable than putting a supercharger on the stock M112.