Brake Booster/Dist Block question

[firefighter736]

Hey guys,

I've already done the brake split mod (Thanks, ChiefRocka!) with a '67 Impala MC. I'm going to go ahead and swap over to a power drum/drum setup. I've already purchased the awesome bracket from CaptainFab. A few questions about the swap:

1) Can I use any brake booster that the MC will bolt to? My friend has a MC out of a late 70s Camaro/Transam, would that work? If not, what should I look for?

2) Do I have to have a distribution block? If so, why are they so expensive?

Thanks!