i have picked up 2 Landa Hot/cold water machines for $200 and $300 respectfully. Had my friend go over them and they both work great for under $500. Let a friend have one for $700 and he loves it.
Don is working on an Alkota for me now.There is an Alkota dealer in Cherryville NC.
Hotsys can be found in SC too. I have only bought electric machines,so far.

All you can do is all you can do.