He summed it up well. A Jobo is a good fit for your needs. It works great for roll film development.
The machine might be free, but assembling the right tanks and reels could be pricey if not included.
Don't try to lift the unit when it is full of water. You could drain it into a bucket before moving it.
If you intend to do color it is great for temperature control for both film and paper. Makes it easy.