Can't sell/share a copy of a manual...but Thor has some old Damon references, maybe worth a call? See:
Contact Us - Thor Industries, Inc.
Just FYI: Our Dutchmen Denali TT and Damon Outlaw Motorhome (both Thor products) owner manuals were found to be just basically a collection/repackaged version of the manuals from the 3rd party system suppliers (stove, aircon, water pump, etc.). Many, if not all of these manuals were found to be on-line from the original companies.
If you are hoping that the manual is like the one that comes from a car makers, it is lacking.
Best luck