Brakes 2 questions

[Mr Bean]

Hi all, just fitted Porsche discs and calipers to the front of my 70 crew cab, found one of the rear flexis has ballooned so looking to change both is there any benefit in fitting braided hoses and if so where's best to buy from. Q2 do I need to do anything with the brake bias valve thought I read somewhere that I need to remove the ball bearing. Running this without a servo. Thanks in advance