A compression test to help check there is no head issues. Get the known stuff fixed and then start with the unknown. crank it up and let it sit running to see if the other sounds and problems come up. hopefully it is just the radiator and the fan you said and nothing else.

91 Montero LS "Sandstorm", Auto, Dual Bouncy Seats, 2" Suspension lift, 2" Body Lift, GENII front IFS, 32" MT tires

89 Raider "Trailbreaker", 3.0, Auto, Dual Bouncy Seats