I bought the John Watts Quilting Frame a few years ago and now I am looking for a Mid-Arm Sewing machine to place on it to start quilting my own quilts. Any suggestions?

I'm not familiar with your frame. I have a Juki on my Grace frame and love it.

I have several Janome sewing machines and the embrodiery machine. I used to move my 6500 Janome back and forth but it's too heavy to keep doing this so I want to purchase a machine with a bigger throat and make this my permanent machine for this frame. What model Juki do you have?