Yeah I might go that route if this ends up not working...
I bought a prefabbed line from O'Reilly's (BH2201317A) but the thread on one of the ends of the line is incorrect even though the O'Reilly's website says it fit's a 2012 Ram 2500 4x4. Went to put it on yesterday and only 1 fitting was correct, so I figured I'd cut it off, put the old fitting on the new line and re-flare it... which didn't work out due to the el cheapo flare tool (which is being returned today)
I wouldn't mind having extra line and a good working flare tool in the shop so next time anything like this happens I can fix it and not have to make a run to the store or wait for parts to come in