I just measured my Horn cutting table, including the casters it rolls on. It is exactly 35" from floor to surface of top. My sewing table (a solid butcher block computer table), is 27" exactly to the top and 60" long and is exactly at my bent elbow when sitting on a swivel office chair. (I am 5'6"). Then my Pfaff sits on top of the surface and it is very comfy. When hubby is done with your renovation, send him over here.
I've been dreaming about a sewing "center" that wraps around 2 corners of the room. Ahhhh, dream on.