I had braided lines to go on as well and my flexis were so perished that I just went ahead and did them anyway.
I've never had the bleed nippled problem occur on 3 306s. Soak them in penetrant oil every day or two for a couple of weeks leading up to the job and they should release just fine if you gradually apply more torque gently. I did the same with the unions but a few were made of cheese unfortunately so me and my friend ended up cutting hard lines and fitting new unions and lines in some cases.
Also, lifting the beam on and off the car can be done alone if you're not bad at bench-pressing. I half-supported it with a trolley-jack and went for it and got there in the end.
I'd offer to come and help you but you're a bit far away!
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61k miles Ph.1 Diablo '6 Project Thread