Don't really need to be welding or metall work.
If you can bang two pieces of wood together you are halfway there.
This is my setup atm.
Just two pieces of 2x4" stuck to the wall.
Two bits of pre-cut shelf boards that I rest and attach to the 'wall mount' and a leg from leftover 2x4" for front support.
Granted it is both pretty permanent and not so pretty..
Only problem is with the pedals I often jostle my chairs position. The carpet helps, but I should be able to sort it out by getting some carabiner hooks and chain so I can securely latch the chair to the support.