Install other engine in 240D

Hi community, I’m Thomas, I’m 35 years old and have been driving a 240D built in 1981 for 5 years. I decided to install another motoer in the car. It’s supposed to be the M110 with 185 hp… Actually thought of buying a butcher to be able to implement the whole thing as easily as possible, quasi plug and play, … in a butcher would be all the necessary parts (electronics, gears, gears, gears, cardan shaft, diff etc.) already. However, it is designed Now my question: Are the 280ger engines from the other series of these years identical and would a motor of the S-Class easily fit into the w123? So at least engine + gearbox? I would have to have a cardan shaft shortened then, and a Diff could certainly be found even where. Greetings Thomas