Malcolm,
Here is what I did…
I went to a local fab shop and had a custom steel frame made for my X-Carve. It cost me less than $100.
I built a small, open wooden table to support the frame. PIcs are below. Hit me up if you have questions.
I had the fab shop cut 2 pieces of angle that match the width of the machine. I drilled holes so I could screw material to the angle and clamp it to the steel frame.
Here is a video of me flattening a log: https://youtu.be/iibeQiF_JAU