I recently posted in another thread that I have scanned and can email a copy of the 1984 Winnebago Operators Manual (PN#: 054185-20-000). This operators manual to the best of my knowledge covers all models of Winnebago's made in the 1984 model year. This would cover Chieftain, Elandan, LeSharo, Minnie Winnie and Winnie Wagon. If you would like this manual please PM me with your email address and I will email it to you.
On a side not I also stumbled across this link as well for all the available sales brochures on the Winnebago website: Winnebago Motor Homes - Brochure Archive
Looks like it covers everything from the model year of 1969 through 2013.