Diy Tilting Trike Designs Where Can I Buy A Telescopic Mast (about 10 Meters) For Under $500?

Where can I buy a telescopic mast (about 10 meters) for under $500? - diy tilting trike designs

I must have a mast that can be bought with some of the photographs of the types used for amateurs and professionals for your shooting is high. The mast that I found on the Internet complete systems ready to go right next to the image and the high cost of approximately U.S. $ 5 billion. I DIY my own camera pan / tilt head and need to find only a telescopic mast. An air operation would be a plus. Thank you.