ebay is where I buy mine. It seemed like there was a dry spell last year...could not find them anywhere stateside and shipping from UK is expensive. But, I looked a few weeks ago and there were plenty available on ebay.
I was riding my Schwinn Collegiate the most but I have switched to the Sun EZ3 as my go to bike. The red Desoto Classic trike was my daily rider at work but no more. I probably have more miles on my silver MASA Slingshot than any bike I currently own.
I am still on crutches and trying to get ready to move from Florida to Arkansas. I have accumulated a lot of crap in the 12 years I have owned this house...lol. My build got put on hold so it will get finished after I move.
I still can't stand long enough to do anything but I did find a wagon for the bed. It is just sitting there until I can build the frame under it. This trike should be a good cruiser for me once finished. Eventually, it may get gears and electric assist.