Greg,
Do you guys not have things like 5 pole SPST switches over there, the likes of the Kraus and Naimer CA-10 range, where if you need more contacts, you add another circular contact block on the back of the switch actuator?
Believe you me mate, these things have got me out of deep doo-doo before, most are rated at 500VAC/100VDC and you can get them in all sorts of switching configurations like SPDT, DPDT, you can have it as you like.