The Intrigue is indeed a high line Country Coach. While it was in the middle of their product lines, the Intrigue is a fully featured rig.
We have owned a 2007 Allure (one level down from the Intrigue) and it has the 425 ISL, is 43' long and has drum brakes all around. The braking performance is excellent, especially with the added braking provided by the ISL's compression brake feature.
CC's were sturdily built rigs and the Dynomax chassis is outstanding. If the coach has been properly maintained and systems check out, I would not be concerned with the mileage.
There are some really nice CC's available at Premier RV in Junction City, Oregon. In your neck of the woods, there are generally a lot of nice used CC's available....CA, OR, WA.