The Hurricane is a legacy line now for Thor Motor Coach (was FourWinds) that is still in manufacture. That means they have sold well and are popular for overall appeal.
https://www.thormotorcoach.com/hurricane/
2007 was the balloon year just before the crash of 2008...these were well made with industry common parts and pieces that are easy to maintain and fix...but...
About a unit with leak damage, it can be superficial or not. But no matter, that should be thoroughly checked and it should impact the price point.
For the overall coach, I would check and double check that EVERY system works. Don't be shy at inspecting it...check EVERYTHING and ask for help with systems you might not understand.
And, I would run water from a sprayer over the area of the leak repair to simulate rain. Then with the spray on, climb inside looking for any water penetration. Yes, it is that important.
Not sure what popcorning is? If it is blisters under the fiberglass gelcoat, that is very difficult and expensive to repair. If not repaired, another factor in the price point.
Best luck