Looks like it would go together pretty well.

I'm cautious about the belt, though. A fair amount of metal on there to snag the material.

Take a look at these from Blackhawk:
http://www.blackhawk.com/product_det...uct_id=2001&d=

or for a "heavy duty" look:
http://www.blackhawk.com/product_det...uct_id=4723&d=

It would also go better with the nylon sporran.