Having lived with a small shop I have had the chance to make lots of mistakes & some that couldn't be done any other way. One thing I have had to do because of a small shop is runs that were not straight enough elbows & such because of lights in the way etc. Please listen th Alan he has it right run your system as straight as you can & put things together so you have sweeps instead of elbows.Use 2 45 or 30 degree plumbing joints with a short pipe between them instead of an elbow.
The other thing I did in my little shop is put the DC right next to the entry door this makes emptying the chips & dust a snap.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart