Pleasr allow me to add to this commentary.
I began quilting after age 65! I had been a dressmaker many years. Then I wanted to change my focus. I did not like putting my quilts together and found someone to long arm quilt them for me.
Then, at age 73, after a lot of frustration, I began a search for a way to finish my quilts myself. I joined a number of forums to learn how other women finished their quilts and with what equipment.
I learned about the Bailey (mid arm) Home Quilters. It became apparent I did not want a 9" arm machine because of the limited quilting area. I purchases the 13" and have been very ahppy with it. I belong to Debbe's group - and while many of those gals have moved on up tothe 15" and 17" Bailey makes, I have not been dissatisfied with my purhcase.
All the features you named can be added to a Bailey 17". It is a simple machine, fashioned after the old straight stitch Singer of years ago. It is a work horse.
Grace makes all kinds of frames and I chose the GMQ Pro frame that will do a King size quilt. However, I have it set at 104" simply because it fits my space and handling the King quilts is getting to be diffiuclt for me, but when I sell my quilting equipment, I will be able to offer the large frame to someone who wants the big one.
Check out Bailey's site. Chuck Bailey is the best of the best when it comes to service after the sale. he will talk/walk you through any problems you may encounter on your road to learning how to use a quilting machine. Make a price comparison - and ask the girls in this group....how happy are they with their Bailey. I for one would not trade it for any other. This past year I pieced and quilted 42 quilts for charities. At 75 I am on a roll.
http://www.baileyssewingcenter.com/homequilter.html
Bailey 13"/GMQ Pro frame
"and loving it "