the 1 thing to make sure of is-get the same year as the car you have. there are a few variations on those motors and you might need a hole for a sensor, switch, etc. the early cars had a different oil cooler setup and makes it tough to deal with unless you catch the problem outside of the car.

replacement stuff-plugs, all the belts, hoses, especially heater hoses 'cuz it's easier with the engine out. when doing the water pump and timing belt, do the tensioner and idler bearings, too. unless they're fresh on the tired motor. good luck, chuck.