I know this is a very old thread...but thought I'd post anyhow; in case someone is looking for a solution, but never thought to search.
The first solution I used was a tubular gate solution that I got at Petco (but you can find it on Amazon too) by Presicion:
http://www.amazon.com/Precision-Pet-...2570124&sr=8-2
You have to install it upside down to get it to work in an H2, but as you can see you can make it follow the contours of the interior well.
The Precision unit was a great solution, and I used it for several years; but I was looking for a barrier that I didn't have to 'remove and store' each time I needed to haul cargo or people.
My latest solution was to have a custom cargo net made by Raingler. I installed some U-bolts in the side trim and used these and the seat belt floor mounts for mounting points. I plan on running two bolts through the side trim to connect to the metal body of the truck to make the upper mounting points more sturdy...but it does the job for now and can easily be rolled and stowed to the side if I need to move people or cargo.
