Uhh... you can't take the switch machine off the O22 switch, it's an integral part of the mechanism! You could remove the light and fill the hole, but the big box is there to stay.
OTOH, Ross Tinplate switches can use an under the table switch machine and would be really hidden. The small switch machine on the lower right can be removed and you can use something like the under-table Tortoise switch motor.
Oh, and you get a much better switch in the bargain.