As Ralph says, you may be able to find one for free. Some (I started to say "many", but I'm not sure of this) folks are moving away from dry mounting for a number of reasons. I switched to over matting with the print hinged to the back of the over matte at the suggestion of a number of gallery owners and framers. You can search this forum for this and find the many opinions and discussions on dry mounting vs loose matting. I haven't let go of my press yet, it's a bridge I don't want to burn.
I guess my main point (having not answered your question), is that you might try flattening and over matting prints before deciding that you need to dry mount. It makes the process simpler too.