As the title says im looking to purcahse a 93 Honda Civic w/ B18c1 GSR. It has the GSR leather interior shift **** and panels. New Clutch, AEM CAI, HID Lights, 17in Enkei Rims, it has been lowers and Full Cat back exhaust w/ DC Headers 4-2-1. He is asking around 5k but im wondering what i should be looking for. The car doesnt have A/C. would that be easy to install if i do purchase it?