Another wonderful source for decapping pins is Brownells...
I broke my decapping pin and was able to find an easy replacement. My Brownells Starter Punch Set has a 0.60" tip about 1" in length. They are pretty tough as they are used to punch out pins. I ordered a replacement set of six pins, not knowing how well the original pin would hold up. The part number for the Replaceable Pins is 080-513-660 and description is Replaceable Pins (6) 1"x.060". They are about $10 for six, but you will not be disappointed in their quality.
To make them fit my Lifetyme die, I used a grinder to remove the large taper from the one end and then I have the total length at about 7/8". To remove the broken pin, you loosen a very small SAE setscrew using a 0.050" allen wrench. Once you remove the old pin, insert the new pin and retighten the setscrew. You should be back in business for a long time.
I hope this helps someone else.
Ross