If you can afford it, and don't want a 'project' (what fun is that, however, ) I'd look at a refurbished one from CatLabs ($1300). I have used them in the past for Jobo equipment.
I would look closely at the CPE 3 unless you are using Expert tanks. I love the CPP2 I have, but if I was a professional, I would buy the CPP3 in a second, built like a tank.
You should pay attention to the serial number on any used CPP-2. The early models had weaker motors which had problems and/or burned out under the heavy weight of, say, 1L liquid in an Expert Drum. Otherwise, they are great machines. I bought mine new in the 90's, never done anything to it, and it runs great to this day.