welcome
I just recently joined xmts so I'm a newbie in all aspects but to answer a few concerns.
There are actual sporran purses available:
Check out thorfinn custom sporrans or other venders
If you're looking for a kilt with pockets:
Check out Freedom Kilts
Almost everyone that I noticed carries Shamrock kilt pins; try EBAY
Hope my .02˘ will actually get you start down a path...