I have a Q'nique 21 that I purchased 5 years ago. It's made by Grace. It has a built in bobbin winder on it that I have never used. Why? Because many of the reviews talked about the bobbin winder failing. So I just bought a standalone bobbin winder; the machine works great! I also have Quilters Creative Touch Beginnings for computerized quilting, which is also supported by Grace. Together, they cost me about half as much as a HQ and Pro-stitcher.
Please note that I only do personal quilting on my set up, so can't tell you how it would stand up to using it for a business.
I also bought it from Allbrands. Grace does all the support no matter who you buy it from. And now there are lots of video's on how to your setup.
Another possibility is to buy a pre-owned long arm and frame. Just Google it!