Brake Swap

[Psychohamster]

This is probably a redundant post but I need the info from those that know.

Plan: To swap brakes from one lwb truck to another.

Donor: '72 C20 with complete power disc setup intact, including pedal linkage, booster, master, P/Valve, everything.

Recipient: '67 C20 with manual 4 wheel drums.

Questions: Is this a straight forward "bolt-on" swap?
Are the spindles interchanchable?
A plan of "attack" would be apprieciated.

Thanks in Advance