HELP!!! brake issues

Bought brake shoes for the new b body rear and they didnt have the slot for the Hand Brake! WTH! anyone know which to get for 11in brakes? I also bought the self adjuster rebuild kit and spring rebuild kit ALL CRAP!!! from AUTOZONE!!!! WTH!!! which parts do i need? And I got the wrong wheel cylinders! too big because i have to adjust the adjusters ALL the way down for the drum too fit. I got the ones for disc front, bad move which were the wrong part number either my fault or theirs!!! What do I do for the pads and springs now? I got the ones for a 68 fury instead of a 63 early b body like the one i actually have :(