Yeah, that's right. That plate can just be lifted off of there- it's a flame shield to keep direct flame off of the cat face.
The holes in the flame shield are giant and you can easily peer through them to see the cat.
The only thing that I would be looking for on a used bk is the presence or lack of heat damage to the bypass retainers. The rim around the bypass opening on the inside roof of the firebox where the bypass door closes. These things (like a picture frame around the opening) can melt down and are extremely difficult to replace requiring cutting and welding.
Other than catastrophic meltdown or physical damage, everything else can be replaced.
If you don't like it doc I'll trade you my nc30 for it and even deliver!