First Lucas decides to 'F' with my electrical

, then when the weather is triple digits, he decides to take out my AC

. There is AC coolant stains all over the inside of the engine compartment. The best I can tell is one of the hoses burst

. Where is the cheapest place to get a good replacement hose? I refuse to go to a dealer

and will wait extra time to get it from a non-dealer.
Thanks