Well that's a very nice fire truck, but if you have an orchard that needs watering check out this 1955 Pirsch behemoth on eBay (an 817 cubic inch engine!).
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&rd=1&item=180206639742&ssPageName=STRK:MEWA:IT&ih=008
Mark