I have an older style ball machine for sale in the Yonge/401 area in Toronto.
It is a Prince Professional II with vsp.
I'm not sure how old it is, as I purchased it used, but it still works very well (I've used it twice in the last week)!
It would be perfect for a smaller tennis club, but also works well for personal use. It fits in the trunk of my car (I have a hatchback-type).
I'm looking for about $250 for it.
Let me know if anyone's interested.
You can also drop me an email if you would prefer.
Here's a picture (it also comes with the original cover):