for the hoses 330i brake caliper, there are many option...
depend on your capability to mod it or get the parts, here the option is;
1. use same as my setup

2. use e30 front hose

3. use stock hose with some m10 male/male elbow + female/female adapter

I used stock e30 booster and e30m3 or e28 master cyl with 23.81mm dia.
and here how to fit the bracket to use 330i rear caliper and retain stock e30 e-brake
pm'd
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