There is a great AMG CLK55 engine on Ebay right now with 60K miles for a little over $3,000. This particular engine is ideal becasue looking at the pictures, it already has the correct oil pan, exhaust manifolds and fan clutch. Not a lot of extra parts would be needed and most of the stuff missing off this engine can be robbed from your V6. There are many unknowns which could cause potential problems and extra expense. Additional parts would be a C43 fan, shroud and radiator hoses. You should also figure an uprated clutch. Your flywheel just might bolt right up and then agan maybe not. If not the stock flywheel might be able to be redrilled. The transmission will bolt right up. Your best bet is to have Rudy do the swap. There is a key start issue to work out or you will have to start from a starter button as I currently do. Tell Rudy you have deep pockets and I am sure he will treat you fairly and give you whatever you want and can afford.