I find it very difficult to see issues from pictures, especially on the computer/web size. Even an untrained eye in person has a hard time seeing things unless they are very bad (or like new).

182 passes isn't a lot, but 4 years is a good time to do an inspection. I have seen better bearings, and worse in that number of runs. You need to look carefully at each one to see if any machining variations need addressing.

Like you said, the bearings and timing chain obviously should not be reused. The cam is a tougher call, from eye ball pictures on the web.