Yes this seems to work. So I have taken the plunge and ordered two and a load of glue sticks for the workshop in two weeks time. I don’t think they get hot enough to hurt anyone, and the glue adheres really well, (and to me unfortunately). Whilst the fabric mat can be stuck with fabric glue, the glue guns will make the vinyl mat far easier to manage.

Trial mat

I will post a link to the instructions for making the legs once I have written them up.