HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD BLACKTOP 20V 4AGE

I was questioning if I make use of a vacuum manifold such as golden eagle a single and eleminate all other outputs and use just one most important output vacuum for your vacuum manifold and just take from there the vacuum outputs that I want like for that Blow Off Valve, Gasoline Tension Regulator, Brake Booster and MAP sensor. Would this function?