I am a novice vintage machine collector. I have a 201, so I went upstairs to do some measurements.
My cabinet is 26 X 30" when closed.
The hole for the machine to sit into is 7 X 17 3/4".
The depth where the machine fits inside is 7".
The extra piece in front that you pull up to place the machine inside is 4" wide.
I hope this helps.