Don't rely on carjam's records all the time, the car I just sold, Carjam have said hasn't had a warrant since 2015, which isn't true. This is just via the free check tho, a paid one should be accurate.
200k on a car made in the "2000's" is nothing really. The 2004 Nissan I just sold has 210+ on the clock, and has NEVER given an engine issue. Think only things we ever did was the shocks, battery, and usual maintenance.
OP, you mention a knocking sound - you are running the car on 95/98 ? (Have to ask)