Will this C20 power brake unit fit my c10?

[Freddo]

Hi everyone,
I have a 1967 c10 with manual brakes. I have the chance to pick up the power brake canister, master cylinder & mounting hardware & rods off of a 68 c20 that looks in almost new condition. The canister is smaller in diameter & thicker than the canisters I usually see on c10's. I was hoping to use my present master cylinder without unhooking the lines and attempting to install the canister & mount behind it. My questions:
1. Anyone familiar with these know whether this would fit on my truck and install on to my master cylinder? 2. If it wouldn't fit, would the mount that goes on to the firewall fit & could I purchase a canister for a c10 & install it on the c20 mount?
All help appreciated!