I've been running a Durst Printo for about 15 years (I think), great machine.
I ran it exclusively for RA4 for about 6 years then I had a huge B&W print run of a few thousand prints, so I did them in the Printo and have been switching between both processes over the years with no apparent ill effects.
One thing to look out for is the exit rollers on each roller rack, they are a soft rubber type of stuff and they are kept under pressure by a spring arrangement. They are meant to be stored with a small bit of plastic between the steel centres of the rollers to keep the roller apart.
Many Printo machines I have seen, have terminally damaged exit rollers as they were not stored correctly. This is about the only real problem I have found.
For minimum work you will need the intro module, plus two more modules with the Heating element as well as the motor (obviously). You do not need any more than that.
This is what I have and my prints just exit into a dish of room temperature water, I then wash these in another dish, then run them through an RC paper dryer.
For test prints I really push the wash part, I can have a dry print within 3½ minutes from putting the paper in.
Mick.