It would be very sad that you would not paint/stencil your logo on the side of the case. That way people will know who's shop it is.
Though one bit of advice about the dust collection, AVOID THE PVC! I don't know how many people have made the dangerous choice of using PVC for the duct work. PVC is not a electrical conductor and will aid in the build up of a dangerous static charge. With all the fine combustible powder one good spark and, well on the light side you'd need a new cabinet, on the big side they'd need a crew to find the pieces.