I love your room and how well organized you have it.
I think I have the same sewing table your machine is set in. But mine has chains that have to be adjusted to get to the correct height for the sewing machine. I just got it and so far am using a pile of cardboard to bring machine up. Did you create the platform with the bolts or did your table come with it that way? If you did that I would really appreciate knowing how you attached it to the underside of the table. Thanks