http://www.mp-molds.com/index.php?pr=Molds
Take a look around Miha's website, he often makes extra's when he's making a group buy.
This one cost $156.00 each set of four pins costs $16.00
Here's the discussion on this group buy. I can take up to 18 months to get your mold, sometimes even longer if the interest isn't high. Most times there's a threshold, or minimum order level that has to be attained. If there's little interest, it may never make it, or take a long time.
http://www.castboolits.gunloads.com/...d.php?t=123375