Mopar Aluminum Master Cylinder Kit

Aluminum Master Cylinder Kit with adapter...
I would like to know if when ordering this kit :
1: Which of the 2 would you also get 1 1/32 or 15/16 Bore
2: Will I keep the distribution block that's mounted to the fender wall the same, its the little part under the master cylinder that feeds the front and the rear lines.

master-cyl.jpg