The Warn 9.ORc is a smaller size winch and a ligther weight, so it won't take up much space on a vehcile made up for rock crawing.
Here is a link to the Warn 9. ORc winch.
http://www.warn.com/truck/winches/src/9.0Rc.shtml
From what I read about the winch, it looks it would work for the H3.
The only thing I did not like about it, is that it only had a 50 foot line on it. I am not sure if you can put a longer line on it.
As for Warn I think they make a very good winch, and they are easy to use. I have used the 9.5 TI a few times, and have not had any problems with it.