I'm not familiar with this chassis, but I recently pulled the engine in my 240D to change the clutch. Most people advised against this approach, but later I got a few messages saying that they agreed with my approach. I had pulled the engine on these simple cars before and it is just less frustrating than pulling the transmission.
Given the fact that the 190 is a relatively early car, without all the wiring harnesses and many other things involved with later cars, I wouldn't be surprised if pulling the engine were fairly easy as long as you have the equipment you need. I have a walking beam down the middle of my shop with a chain hoist and an engine tilter bar hanging on the chain hoist.
It was my preference and worked well for me.
Good luck and let us know how it turns out,