Hello, I am wondering if anyone can help me locate a/c lines for my 78 suburban. The lines that run under the vehicle for the rear air are rusted. I guess aluminum can rust too. My issue is money of course. My sub is a work truck and I dont want to throw alot of money at it right now. Ive checked ##### in the nieghborhood of 500.00 for new lines. Is there anywhere that is cheaper? Thank you