What to do?

I am doing a front disk brake swap on a 67 fastback. I have installed everything for the UCA to the disks. I am trying to in stall the new caliper hoses, but I can't break free the steel line from the old hoses. Should I cut the steel line right above the nut and re-flair the ends? I think there will be enough line left to do that or do I just have to install new steel lines or a short jumper line.
Also I am not totally sure on how the calipers for a 74-dodge dart get assembled and mounted. They are the type when mounted, do not use bolts, but with some kind of wedge and flat brackets?? Dose anyone have a picture of how they go together.
I think I have everything but the wedges. Dose anyone where might be able to get them? I have bought everything that the local parts store cam get.
Thanks