I'd stick with Vintage Air. Their tech group is very good, and their stock of fittings is extensive when you get ready to pipe it up. I found that the prices of fittings and hose, even including shipping, was about equal to local prices, but my local guys could not get some of the special fittings that VA carries. I bought hose & fittings from VA, fabbed them up and marked them for alignment, and my local NAPA guys crimped them for me.