Replacing Stock Motor with JDM KLZE

So in short i screwed up the motor in my 93 mazda mx 6 and need to replace the motor in it. I dont know much about cars, but need to know what has to be done to the car for the engine, such as mods and what not. does the mortor just drop in and use the stock connections? and do i need to upgrade anything? and if anyone here has already done this, what was the cost of the engine and how much did they pay to install it? if you could help me out, i would greatly aprreciate it. thanks.