I went ahead and got the gas valves from ebay for $35.80 each:D
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310235436226&ssPageName=STRK:MEWAX:IT
I am still waffling over the switches . I know the ones I want for the pumps will be rated for 110 but do I need 24v switches to turn on...