Lisa: there's a video on Youtube that shows how to make an extension from foam insulation boards and plastic. (Iknow sounds awful) My DH made me one of these in less than an hour-you stack them and cut out the space for your machine. It has made quilting SO much easier-no weight pulling on your quilt, stitches are more even, shoulders don't hurt. When I'm not using it, it fits behind the door. I don't think it cost more than $10-15. Just a suggestion-hope this helps.
Peace-
Jan