That looks great. I want one but will have to put up with my portable belt sander (which at least can be clamped to a bench and pretend to be a bench one, just nowhere near as good).
It's only been up and running for a couple of weeks … I knew it would be useful, but didn't realise to what extent, it saves so much time making metal stuff neatly.
As a halfway house, would it be worth considering a fixture to hold the portable unit which incorporates an adjustable table?