Here is a source for inexpensive mini toggle switches for control panels. The 1/4 inch mounts are down the page.
http://www.mpja.com/Category/Switches/Toggle_Switches/Toggle_Switches-Switches.asp
I just got some and they are as good as anyone's. No problems encountered with the dealer.
Elmer.
The above is my opinion, from an active and experienced Model Railroader in N scale and HO since 1961.
(Modeling Freelance, Eastern US, HO scale, in 1962, with NCE DCC for locomotive control and a stand alone LocoNet for block detection and signals.) http://waynes-trains.com/ at home, and N scale at the Club.