Arrowflash

Want to find my first scooby i would like a MY00 W/X Low milage 20/25 K in blue / green / red mica .There are quite a few around i've noticed but none with AIR CON . While i was looking on another thread there was a link to WWW.gradea-subaru.co.uk who sell parts from scrap imprezas they have air con kits for Impreza 97-00 for 390+vat are they reasonably straight forward to fit to a car which has not got air con and dose anyone know if everything you need is in the kit apart from the gas?