You need to check with some of the local sporting goods dealers around your area. But in all reality I doubt that you will find anyone that is willing to rent you one just due to the liability issue of it.
One other thing you might look at is buying one. There are some good cheap ones out there that you could buy for about the same price that you might be able to rent one for.
Lone Wolf Treestands is a newer high end stand. They are incredibly light which has great advantages when carrying it through the woods. You also can't go wrong with Ol'Man. They have been around for awhile and their new Drone with the Hex drive is very convenient being able to level yourself while up in a climber.
Being a bowhunting I've always been fanatical about scent control. Whether it's sprays, carbon clothing etc. I've tried it. The best thing that I have found for eliminating human scent is Betadine. It's been used in hospitals and homes for decades as a defense against infections on minor scrapes and burns. It can typically be found near the pharmacy in any of the major "one stop shop" stores, and a bottle will last multiple hunting seasons.
Before every hunt possible I...