First, welcome to the forum. We are NOT associated with Keystone RV manufacturing company and to my knowledge, no one from Keystone even monitors this website. Most here, however, do own and use Keystone RV's and we are a group of owners who banded together to help one another with issues and to share our experiences with Keystone RV's. So, we're happy that you found us and joined our group.
As for the owner's manual you're looking for, Keystone does not produce a "model specific owners manual".
To get the available manuals, go to
www.Keystonerv.com, along the top, click on "customer service" then click on "owner's manual" and select the "generic manual" that best suits your need. The oldest manual I see available is the 2009 version. Keep in mind that Keystone only has a "generic owner's manual" with general information regarding the entire line of Keystone RV's. That means one manual is printed for the hundreds of models Keystone manufacturers.
For the specific appliances and components in your RV, get the model number from the item, then go online and download the user information, manuals, part's breakdowns, installation and service manuals for each of them individually. Keystone has never published those items, they include the manufacturer's documentation in the owner's packet that came with the new RV.
If you're looking for something specific, back to the Keystone website, when you click on "customer service" you can also click on "service/parts/warranty inquiry" and a form will open for you to contact customer service with your specific question. Be aware that it may take Keystone a week or more to respond to your question.
If that doesn't produce the results you're looking for, select a category here on the forum and ask your question. You have a wealth of owner experience available online with this forum.
Hope that helps somewhat.