I have the same problem of needing my CT to be on site so the Boom was not really a solution (besides that price is a bit steep for some metal tubing), my "boom" is a piece of 6' piece of 1" PVC pipe with the power cord and hose ziplocked to it at the top end and velcro ties along the length to keep it tidy, when heading on site I cut the ziplock, rip off the velcro and take the hose and CT with me, once back in the shop I replace the ziplock and my boom is back in business.
The PVC boom is flexible enough it follows me all over an 8' x 4' cutting table, it's mounted (screwed) to a stand that lifts the CT to table height to maximize reach with the hose.
The 1" turned out to be a little too flexible when first fitted, so I dropped a piece of 1/2" threaded bar (about 2') down the end, it stopped at the mounting screws and keeps the first 2' rigid.