SmartJay, Here are the parts you will want to get from Carlos in order to make everything work. 1) Auto Climate Control Unit with green clip and wires hanging off the back. 2) Outside air ambient temp sensor (just have him unclip the sensor right under the hood in front of the radiator, your car already has the wiring for it, mine did on the 95 L) 3) Heater Core temp sensor (it has 2 orange wires coming off of it, and also get the little metal clip that goes with it) 4) sunlight sensor up by the window in middle of dash 5) mode control motor above the gas pedal, you will not be able to use the one in your car.
Those are the only 5 things you will need, your car has everything else in it that the system needs. You do not need to get a different wiring harness, all you do is just add wires along side your existing harness with tape or zip ties. Once you have everything you need, then I can assist you in the wiring, I can get you the exact info on what color coded wires go where. I can email you that info when you are ready.
Also, if you would like, I can email you pictures of the sensors you will need that I took during my installation to give you an idea of what they look like and where they are located.