Before you make any decisions, please look at the Handiquilter site, the Tin Lizzie site, and the Pennywinkle site. They've got machines for lower prices than Gammill and APQS. Honestly, if your'e thinking about a frame, you're probably thinking about more throat space. Don't buy something that you're not going to be happy with down the road. There's also a site: www.houseofhanson.com
that has listings for used machines. You might be able to buy more machine than you originally thought.
Hope this helps,