Hi..I'm quite new to quilting (and loving it) and I just found this site yesterday and saw this and loved the idea. I've seen a video where a lady used foam to build up a flat sewing area but the machine was in the normal position. I've used mine turned around to use with something similar to the Flynn frame that my hubby made for the 1 large quilt I've done, but I've never thought of combining the 2 ideas - turning the machine and sitting it in a foam bed. I'm definitely going to try it :)
For those who have trouble reaching the foot pedal, I had the same problem but hubby, having an electrical licence, just extended the cable on my foot pedal and now I have heaps of length in it. My machine is quite old so this may not suit those who's machines are still under warranty though.