Rear brake line help

Hello everyone. I found the issue which was resulting in me not getting any brake fluid to the rear bleeders in my 1973 roadrunner 340. This hose that connects the brake line under the car to the "T" was clogged. Unfortunately, I could not remove one of the sides by holding one of the nuts and spinning the other. They were very stuck and one of the nuts started to strip. I broke it off and I show a picture of how the brake line is dangling now. The other picture is the hose that was clogged with the fittings on each side. My question is, is there anything I can do to the brake line to be able to get a nut on there and connect it back to the rubber hose? I've never dealt with a brake line like this. I'd hate to have to redo the entire thing now because it's routed nicely and nothing else is clogged. We blew air in one side and it shot out the other. Any help is appreciated, thanks guys!

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