You can contact AUTOCLIMATE who specialise in fitting aircon to vehicles without,however your looking upwards of 1k normally.The alternative is to visit a breakers yard and you need the heater box(dash out) with the evaporator,the condensor which goes in front of the radiator plus and different mounting brackets it may have.The compressor which is on the auxilliary drive belt,the mounting bracket if needed to secure it to the engine,all the pipes ,receiver dryer unit,longer drive belt,and then you will need to wire it all up.Hope all this hassle has put you off as even i wouldnt do all that unless the car holds some serious sentimental value,lol..........