gatvol,
While my CV1800 is built within a free standing frame on castors, it is fixed in place. It can be moved out from the corner for maintenance or repair after disconnecting the unit from the central piping. Therefore, I would say mine is not “truly mobile”.
Looking at the assembly instructions found on Clear Vue’s website, I calculate the height of the unit (motor +impeller housing + cyclone body) to be 67.5” tall. The height would increase to 69.5” with 2” castors. My standard overhead garage door opening height (floor to lower edge of the opened garage door) is 81”. Thus in my situation a mobile CV1800 on 2” castors would leave an absolute maximum 11.5” in height for the dust bin. A further reduction in the height of the dust bin would be required in order to transition from the cyclone body to the dust bin. Therefore, in my situation, there would be insufficient dust bin capacity to make rolling the CV1800 onto the driveway worthwhile.
If the challenge of lifting the CV1800 so that a larger dust bin can fit underneath is overcome and 6” flex hose is used to connect to the machines, placing the CV1800 in a tower made from construction lumber on castors would work. The CV1800 is top heavy and of such weight that some form of mechanical assistance would be required to lift the unit.
I am unsure how the CV1800 would work with no dust bin. I suppose it would pull debris from the machines but would leave a real mess of the driveway and surrounding area. In the typical installation, the CV1800/dust bin connection must be air tight.