don't use much boast with your plan...

MB added different pistons and oil cooling jets to deal with the heat of the turbo/extra fuel. Without it the potential for scuffing and seizing pistons exist. But, Atlanta Stutgard had a guy doing them by cutting off the end of a 5 cylinder , welding the end and putting them on. Think he turned the boost down- not sure how he did the fuel compensation for pressure.

Your not the first one ...

Michael