Need to replace the steel lines in my '53K, and no one in our rural area seems to be able to fabricate the double flare thingees, and I don't want to buy a flare kit for one set of lines. Looking back, I ran into the same thing many years ago and made a copper one myself, with a single flare, which I am equipped to do. Drove it for years with no problems. I suppose it could be argued that where it goes from the tank to the frame it might be more vulnerable than steel to damage. Casting about on the net, I see recommendations to just use compression fittings on steel line, which should be OK for as low a pressure as is involved here. Also notice that 5/16 brake lines appear to be identical, and then the only problem is getting the exact lengths. Anyone done anything of this type, or have a good source for the correct lines in central WI?