Yeah this is way noobish! My head hurts from searching.

99 GC Limited, 4.7 v8 97,000 miles, Carfax is clean, 1 owner, asking 5.5k
Unsure about the recalls, just saw the listing today. Calling tommorow.

What mechanical should I look out for? Ideally what work should already have been done.

Again way noobish I know...