My thoughts would be that I would keep the tanks on the left side,
but I’m not sure that I would have them ON THE BENCH TOP. Below the
bench top, yes, the hoses would not get inthe way. I keep my torch
in my left hand, and use my right hand to keep things in place, move
things around, etc.
In my studio, I have a separate soldering area, which is enclosed and
there is an exhaust fan to remove fumes. The soldering area is a
table (with an exhaust fan hood and surround) that is just to the
right of where my bench is. My tank, acetylene, is to my left side,
my hoses never get in my way, since I hold my torch in my left hand,
and put the torch down on a metal grate.