I'd go with a portable disign wall ( use a roller up shade covered in flannel?) At one time I had picked up a old movie projector screen... I covered it in light wt flannel and I coudl stand it up and pull out the screen and tada.. instant design board..... and it was protable too, and free standing... Use caution in ur pick of cardtables.. some are to lt wt for a machine... ( been there and done that.. the card table if too lt will shake and shimmy when operating the machine)Maybe some rolling plastic drawer systems to store tools and ur stash......
think out side of the box. u can make this happen!!