Can anyone point me to a really good all encompassing pensions question? Thanks!

I think Konvexity has a good one where the company reports under GAAP and wants to transform to IFRS. However, since most of your questions are from Konvexity I assume you have already done that. So, you can try Schweser mock, AM, the first FRA set, less calculation but tests your overall conceptual understanding on pension accounting.