To be honest, that was my initial idea too. However I do not own a belt sander for such metal work, so would need to use the angle grinder.
But this scare´s the **** out of me, I could loose a finger 
So for me that´s a no-go 
Thanks for the insights Dan. I appreciate you guys for thinking with me.
I imagined that when there would be a slight misalignment the spacers could be turning around too. But you´re right, if it is clamped tight enough it should work.
I might give it a go.
Some good news is that I managed to get a set of sawhorses for the easy removable table.
I went with another brand instead of toughbuilt simply because the other brand is wider and longer. Now I got to make the decision if I would make a full sheet table immediately, or just start small like I initially planned.
It seems that Michael had the same idea in the past so I can get some ideas from his project
Love this forum!