If you’re looking for more ideas or kits, I came across these Hickman Design that might offer some inspiration or extra tools for your setup. It’s great that your daughter is getting into lino printing—such a fun and creative hobby.
I’m replying to an old post here, but I wanted to share my own experience from last year. I used a wooden frame with a vice screw, and it worked pretty well for me. A solid hardwood frame really makes a difference in stability.