Not knowing the size of the executive desk maybe after fitting your machine to your desk, You could have it up against the desk for extra room if you decide to DSM quilt. Maybe filing cabinets would fit under the desk for extra storage. Possibly add casters to the bottoms for mobility.. I personally would have to see the layout of the basement. especially if you have the HVAC and appliances in the basement. And amount of lighting would be a factor. As others have stated, though check out Pinterest and the different photos members have here of their rooms.