I'm right there with you on the cabinet! I travel for a living and my sewing machine comes with. My shoulder/back hurts after sewing just a short period of time. But when I'm home, I can sew all day long no problems.
One of my cabinets I got for free with my machine, another one I got off of Craigslist. My sister bought one off of Facebook market place. Used cabinets are out there, just have to be patient and look.