spstout

I am looking at getting a Sweet 16 or Bailey 15 sit down machine sometime in the not too distant future. I don't really have a place I can see the Bailey. I do believe there is a local place with a Sweet 16 and I am planning to take a day trip there. But before I do, I am wondering, do these machines have feed dogs that you can use with a walking foot to do stitch-in-the-ditch quilting or are they exclusively free motion?

Also, are there other machines I should be considering? I do not want a stand up long-arm machine with a frame. I need a sit down version.

Thanks in advance for your help!