I believe you will find that a 27Q will have a sticker which shows the OCCC rather than the CCC. The OCCC is the GVWR-the UVW as is the CCC; however, for the OCCC a full tank of both fuel and propane is considered to be on board for the Unladen Vehicle Wt. This is all covered well in the RV Forum. Go to rvforum.net>RV Forum Community> Glossary....just to "know what you are looking at" so-to-speak when you view the sticker.
Suggestion: There is one of these for sale at PPL with Auto Levelers, Awning, Generator, etc. Go to pplmotorhomes.com>Class B and Class C Motorhomes then click "Cleburne" to view it. When I was still shopping, I called the Cleburne lot to ck the date code on the tires on a unit I was interested in. They went out on the lot, wrote the date codes down and called me back later the same day!! (The tires were older 'n dirt, BTW).
Anyway (before I bought my rig from a private party) I talked with folks at 2 of their lots and they were most helpful. You may have to tell them where to look......mine (a CCC sticker on an older WGO) is on the back wall of the bedroom closet (it's not itty-bitty).....but they can be anywhere.
Good luck in your quest.