Looks like I gotta change out the transmission On my wife’s car due to it acting up and we need a solid reliable transportation. I have a good spare that is on the bench. I called around to shops to see if they could just swap it out but apparently because it’s a “Mercedes” it’s 2x - 3x the price. It looks pretty straight forward. Any pointers or advise that might make the job easier. How high should I put the car on blocks? I’m doing this in the driveway.

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero