300C disc brake master cylinder/ a/c question

[Chris Davis <pngkid@xxxx>]

Dad's C has been converted to front discs by use of the AAJ kit. 
However, now that we have the body on the frame with the engine 
installed we are stumped as to what dual chamber master cylinder will fit.
What have you guys used?
Also, what underdash a/c's have you used that will fit. We ordered one 
from Vintage air, but the 'box' is too big to hide under the dash.

Thanks,

chris davis