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I like the serpa line of holsters, if you can find one that fit's what you are looking for. Most places carry them and they are a sweet setup.
Yes a thigh rig will make you sweat. It has to be tight to keep from flopping around as you move up and down. They also tend to pull up you pantleg at times. On the Badlands 2200, can you attach anything between the belt and the belt pad? In the photos it looks like there is room for a holster mount.