I have a Brothers 1500s and my DH made this sewing table for me. He took a old kitchen table put the foam on top and then cut the legs off to make it a good height for me. I do FMQ using this set up but my machine is horizontal since I also use this machine for piecing. I actually keep this table up all the time since it makes a great sewing surface. the bigger throat does make it easier but FMQ on a DM s still hard! I think that your position of the machine would work for FMQ but you still have the bulk of the quilt to deal with in the back instead of on the side. as for changing the bobbin - I lift the machine out of the hole change and then put put down. This is about the only problem with this machine is the side bobbin placement.
Here is the site for making the table-
http://www.youtube.com/watch?v=g14govA4pIM