I don't see anything that you've said that would lead me to think the engine is fried. The oil leak at the pressure sender is a good sign - it shows you've got oil up to the top of the engine. The 190 is prolly about where the thermostat wants to open up, if it wants to go much above that it might indicate a problem. The fan breakers are a seperate issue, I read a thread here awhile back that said it's better to run 2 breakers in parallel, that might cure the "trip" problem. You might want to pull your valve covers just to verify the top end is getting oiled.
Good luck!!
