I used a cooler also. This one is a little more compact, everything fits inside the lid flips up and the gimbal is attached to the underside of the lid and folds nicely away when closed. The orange colour stands out great against the snow and ice.
https://i.imgur.com/2GKMpLF.jpg
https://i.imgur.com/WHuyH0Y.jpg
https://i.imgur.com/9q3IR5k.jpg