Have you seen North stars tree cat stand. It is a leveling stand that uses belts instead of cables (having used cables Ithink the belts are a big improvement) and the bar swings down under the seat. Tried shoot my bow with it up, not good.
It is a preloaded system that you adjust by simply squeezingthe release.Cinches right up and quietly. Has other features that are good as well.269 most places.

http://www.northstarrtreestands.com/Forest-TreeCat-Archer.html