Join Date: Apr 2016
Location: Rohnert Park CA
Vehicle: 2001 SLK 230 Kompressor AMG Sport Package
Other Toys: Kawasaki Ninja, 07 VW Rabbit 2.5
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That sucks to hear, but it can be fixed for under $500 if you perform the job yourself. The head-bolts are very sensitive and can easily snap. Torch the bolts to help free it up before removing it. At a minimum you need to have the head checked for valve leaks. For sure it will need to be resurfaced.
Use Mopar combustion cleaner to clean the chamber. You can look at the book (TDC) setup, but if you mark the cam to the timing chain before removing you should be fine. The job is not complicated, it's the head-bolts that you should worry about.
If you see scoring in the combustion chamber, then you need to remove the block as well. If it's just the head that needs fixing you should be able to do it in 3-4 days. The delay will come from the machine shop. Use a bore gauge to check for consistency on each cylinder. There's a 65% chance that your pistons are fried, I don't know how many times you the RED, but all it takes is one time. If you decide to remove the whole engine(Long Block), buy a rebuild kit and take it to a machine shop. The labor should only be $1500+ parts. Anything is possible with a garage.