Thanks so much for posting this! I got a Brother 1500 last spring and asked whether anyone had set theirs up just like you did!
http://www.quiltingboard.com/main-f1...e-t244543.html
I'm still thinking about doing this. it. I do like the knee lift, first machine I've had that feature with. But I think the way you've got the machine positioned would make FMQ easier.