Eventually, the sewing machine will be dropped down into the table so it is a giant level sewing surface (49 x 97). I brought my old Janome 6500 in to see if I can be content with it. So far I have only been reminded of how much I dislike sewing on it. In my home studio, I primarily use a Juki 98Q. In fact, I have pretty much worn the Juki out and was already considering purchasing another one. They run about $700, so very affordable. I still contemplate a sit down quilter, as well, though.....so not yet sure what will become permanent in this sewing area. I don't want to cut into the work table until I am certain. Once the hole is cut - it is a long term commitment.I am thrilled with my giant ironing table that is built into this window nook. It measures 73 x 42" I covered plywood with aluminum foil, then a couple of layers of batting and finally wrapped on some upholstery twill that I've had for a decade or so. Staple gun was my tool of choice for this project. I will eventually build a giant shelf or two under the ironing table to store rolls of fabric and batting. I am not doing that until I decide exactly what supplies will be taking up residence in this space so I can customize the storage dimensions.
By the way - I did all this construction 100% by myself. Nobody else - except I did pay someone to carry the 49 x 79" sheets of melamine up two flights of stairs. So heavy and way too big and awkward.