Brake Line Help!!! Brass nuts stripped while splitting lines

[Blue_Aura]

So I was splitting my lines so I could install my power brake dual M/C and the fitting for the back brake lines, at the tee at the front passenger side stripped out and there is no solid face for a wrench to break it loose.

If I use some vice grips on it, it will mangle it past usefulness. I was planning on just hooking up a coupler and running a new line from there to the M/C, but if I mangle the fitting, I don't know if I am going to be able to get it seated enough in the coupler so it doesn't leak.

At this point, I see 3 options (remember, I am broke and need to get this truck sold ASAP);

1. Just run power brakes on the non-split stock brake lines (not a great choice).
2. Mangle the rear brake line and try to run a coupler to a new line up to the M/C.
3. Try to cut the rear line, buy a flare kit (don't really have the money for that) and attempt repair the line with a new fitting. There isn't much room to work on that line, so I'm afraid that if I did that, there wouldn't be enough line left to get a good flare.

I appreciate any guidance!!!!
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