New (used) Refurbished, Used Travel CPAP Machine?

I have an aging Puritan Bennet GoodKnight 420G that is finally failing. Its producing a strange burnt electrical smell and I'm not comfortable using it any longer. It was a great small dependable work horse and perfect size for traveling especially without the attachable humidifier. I'd like to find a replacement but that's impossible possibly a small Z2 Travel CPAP device. Any suggestions? Used /Refurbished is seemingly none existent and even New Devices are either out of stock or in the $800 range.

Have you tried Secondwindcpap.com? Great co. for refurbs (and new) at good prices.

You might want to send a private message to LSAT. He often sells used machines, and those who buy from him are happy with the deals.