Hi Bob - Welcome to the forum
I don't know how "portable" you are thinking. You could just make or buy a table top and attach legs with some folding table leg hinges: Table Leg Hinge for 1-1/2" Square Leg - Table Hinges - Shelf Hinges | HardwareSource.com
Just a suggestion... I'm pretty well space challenged also and a small benchtop table with folding legs works for me but sorta cuts down on larger projects. No reason it couldn't be scaled up also..
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