I'll second the recommendations for McRostie and Artificer sporrans, but judging from the price point of the WPG sporran you referenced in your OP, perhaps something more along the lines of this:

http://www.ebay.com/itm/KILT-SPORRAN...item20be6ace1b

I purchased a sporran in black that's identical to your WPG sporran from this ebay store some time ago: http://stores.ebay.com/Army-Outfitte...h&_sid=8342665

I notice that he doesn't have any in black listed at the moment, but you might drop him a line and see if he can put his hands on one for you.

Hope you'll find what you're after!

SM