Just curious as to why you need a manual ?
The manuals that come with trailers are not very informative. Any trailer manual will offer the same basic general info regarding winterizing, cleaning etc.
The appliances all have there own paperwork so you can contact those individual companies for warranty info., use and specs . Those companies may still be in business or those manuals may be avl.
The only thing that I can think to do is to scroll through various posts on rv forums and contact people that own a trailer similar to yours. Most rv people are helpful , if they have the paperwork, would copy it and send it to you.
You'll have better luck doing google searches opposed to rv.net searches. Type in 'rv.net,trailer manuals for ....'
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/22376735.cfm
