The tube is about $75,The shaft shouldn’t be $500. It’s held on with screws and a replaceable part
Carbon telescopic tube 2pcs with U-clamp
I thought of this as well, there are a couple of issues though one being the U-clamp inside the tube, (not sure if there is enough room for the cable as well as the clamp) and two, I don't see any way that you would be able to route the cable out the top of the Orca because it is a sealed box. You would need to drill 2 holes on the tube one near the stream pump and one near the top of the tube to route the cable back out of.....


