what brake m/c for disc swap?

[blackmopar]

Whats up guys

1964 C10 - currently have the stock drum/drum with power booster single res m/c

Im grabbing the drop spindle/disc kit from speedway:
http://www.speedwaymotors.com/1963-7...Kit,46257.html

and need to get a dual res m/c for disc/drum.

What year/model should I go for here - Id like to keep my current booster etc to keep cost down

can i use a 68-82 vette or something better/cheaper?

thanks!