Or do like me and buy a MasterCool crimper, hoses, and ferrules then sell it when done. I've made AC hoses for 5 cars with it, plus oil cooler hoses for my M-B, and coolant hoses for my 2002 minivan (used silicone heater hose). Once you have a hammer ... Or you could use Oeticker stepless ear clamps for a factory look, even smooth screw clamps like Breeze.