Yes, the Durst Printo RA4 minimum system is relatively cheap. I purchased mine around 30 years ago, it still works very well.
As a bonus, you can also use it to process B&W RC paper.
You will need the Intro unit, and two tanks both equipped with Energy Mot motor units. Basically these units have an element that sits in the solution and heats up the bath, there is however the possibility that some of these electrical heating elements may be stuffed.
If you look very carefully over the entire element, look for cracks, especially where the element disappears into the motor unit. What seems to happen is that the element is lowered into the tank and as it is a tight fit, it can be caught up on something and it only takes a small amount of force to bend the element. A gently push back to straight is the fix; but if this is done multiple times, then the outer casing of the electrical element starts to crack and many of those with cracks eventually stop heating.
To test that the heating element works, fill the tank with water, then place the Energy Mot into the tank, add the second tank and do the same, then add the Intro unit, plug it in and doubly ensuring the tanks are full of water, switch it on.
If nothing moves, then immediately switch it off and check things out. What often happens is the the plugs attached to the motor units have a female and male plug, if these are not really snug, then power doesn't get to all the motors and it won't work.
They are really good units.
Whatever and however you test these units, doubly ensure the heating elements are inserted into water, they can self destruct within seconds.