The Alps O Z Stealth looks like the one for me. I can't do a 5-gallon bucket for several hours.
Came in today. 5-min to assemble and then took it for a test drive. Totally quiet. Height adjustable. Comfy too!
A tad heavy if you were going to carry for miles and miles, but with the include shoulder strap I'll no issue toting it 1/4 mile or so to my spot.
