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.