Where can I purchase 1/2" OD steel tubing to bend a new line front to back? What type of tubing do I need? I am leaning towards steel rather than stainless to save cost, the first one lasted 35 years. I have frame connectors welded in w/ solid mounts, so plan to bend one piece of tubing from front to back. I have a shopping list of fittings on Summit Racing, but it appears they don't carry 1/2" OD steel tubing, only aluminum. I am unsure what wall thickness is needed, seamless or not, etc. Plan to use AN fittings at each end of line. Plan to flare the line with tube nuts on each end.