So I have finally decided to change the rear beam. Well the car decided for me, as the rims for summer has a different ET, and got stuck on the arch 
Brake lines have been there since 94, and are pretty stuck. Been spraying em with freeze spray, but don't seem to want to come loose. Slightly rounded the small union because it is rusty. Vice grips next. But to the question. If the brake, or maybe I should do it anyways since they are so rusty. Is it hard to change them? Or are they pretty accessible all the way to the master cylinder? Bit risky to do myself? My local dealer sells flaring kits and the rest I need for a ok price. Easy to make mistakes when flaring?
"editing in new question":
Removing the lines from the splitterthingy just over the subframe. I will probably empty the reservoir of brake fluid then? And its not a clear path to the ground. Will the brake fluid destroy any rubber bushings it hits on the way, or is it nothing to worry about. Just try to catch as much as possible?
Brake lines have been there since 94, and are pretty stuck. Been spraying em with freeze spray, but don't seem to want to come loose. Slightly rounded the small union because it is rusty. Vice grips next. But to the question. If the brake, or maybe I should do it anyways since they are so rusty. Is it hard to change them? Or are they pretty accessible all the way to the master cylinder? Bit risky to do myself? My local dealer sells flaring kits and the rest I need for a ok price. Easy to make mistakes when flaring?
"editing in new question":
Removing the lines from the splitterthingy just over the subframe. I will probably empty the reservoir of brake fluid then? And its not a clear path to the ground. Will the brake fluid destroy any rubber bushings it hits on the way, or is it nothing to worry about. Just try to catch as much as possible?