The Manfrotto 682B is a heavy-duty monopod that extends to more than 170cm. Not compact- it's 70cm collapsed, and weighs about 1.2kg- but it's sturdy as you'd need, with a payload of 11kg. Even better: you can unscrew the foot to reveal a three-legged support that lets the monopod stand on its own. This is not a tripod per se, and you don't want to leave it unattended, but it can provide much needed stability with heavier loads. In excellent condition, with only the most minor cosmetic wear.