[ The desk is large... 3 ft by 5 ft. This is where my machine will be.[
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Sounds like my father-in-laws' 1910 wooden desk I'm using for my computer.
Right behind my computer I have a premade 25 hole shoe box/rack. It's white
wood and very strong, very heavy. Holds masses of computer disks, etc.
_Hint...you might could stack these in the closet instead of shelves, like I said,
they are very strong and will stack easily. Could be screwed together and to the
wall studs if you want.
And I would suggest a foot rest that is slightly slanted, with a 1x1 inch board
across the bottom of it to keep the foot feed from running away. You could
make that yourself with a couple of cheap power tools. And you might be very
surprised at how much wood work you can do your self when motivated!!