Hi,
Slanting the machine is a great idea. While the door stops work there is actually a platform that lets you adjust the tilt. It fits under your machine and even has a slot for the cord. I purchased mine from Nancy's Notions several years ago. It does make it a lot easier on your neck when you are sewing. The only drawback is that things tend to slide off. I also have the acrilic slide on extension table for my machine. I actually broke the first one and my husband made me another out of plexglass. He was able to use the screw on adjustable feet from the original one. It is nice to have a husband who is a machinist by trade.