Hard to say if the cracked blocks were driven hard. Of course for some odd reason, these younger guys get into a Honda Civic and suddenly Dale Earnhardt's spirit wants to take over.
I would think a rod would be thrown rather than a cracked block but who knows.
I'm eyeing changing the thermostat and MAYBE the water pump. Jury still is out on that. Yes, they are original.
The thermostat is easy enough, I did it on mine recently because it was not closing properly. During warm weather it would raise 9 marks on the gauge but come winter it was maybe 4 or 5 usually. Back to 9 now though.
The water pump though - you are probably well aware of the difficulties some people have had with that stupid pivot bolt on the tensioner.
I would say if you decide to do the water pump yourself and before it fails, maybe buy the tools like a few 8 mm hex bits, drill bits designed to drill into hard metal (have them at Home Depot and probably other stores), tap, new bolt, etc just in case the worst happens and you have to drill out the old one. Of course budget plenty of time.
You may get lucky and it will come out without much hassle but do not count on it.
If I ever have to do the water pump on mine, I am going to plan as if that bolt will break.
If you can easily afford to have a shop do it (probably $500 or more), maybe go that route.