I did a quick search thru a company called The Right Stuff. I was very happy when I used them when I did a frame-off restoration of my 1970 Oldsmobile 4-42. They provided stainless lines that were perfectly formed, and I didn't have a problem with one piece not fitting correctly.
I used them for brake and fuel lines. I didn't compare them for pricing, but wouldn't hesitate to use them again for any project.
Clear Image Tri-Ys & Hi-Flow cats >> 2.5" X-Pipe & Magnaflow Tri-Chambers, Mike Harris 4L60E, Circle-D 2,400 RPM TC, All MOOG FT End & Del-A-Lum bushed MOOG CTRL Arms, Eibach FT & New Stock HT rear springs. Hotchkis Sway Bars & End Links, RAISS, 3.73 Gears in Eaton carrier, Dynoshaft & CIA Loop, BMR Trailing Arms, Braided Brake Hoses, Taylor Spiro-Pro Wires, AutoMeter Water Temp & Oil PSI Gauges, Impala Console. ATE Blue Brake Fluid. Skip White distributor. 20's, Z28 Cluster, Corbeau GTS Seat