I'm having trouble removing my old front brake hoses on the 300D. The flare nut on the hard line refuses to budge out of the hose and the hex faces have started to deform now even using the proper flare wrench to begin with

I soaked them every day for a week with WD40 before I attempted the first time, but no luck. The rears were fine, but not the fronts.
Any suggestions for removal without further damage to the flare nut?? This must be a common problem, because I had the same thing happen to the 560SEL rear hoses which required replacing both hard lines out of the rear tee. Replacement is a grim option on the front hard line though...I can't imagine what I have to remove to replace the right side!