The hakamas valter posted are actually different from the ones that David did as valter's own hakamas are a wool gabardine and with much wider legs, asking them look much more like a skirt than the ones David has which are in a very soft jersey cotton and are shorter. Unfortunately the hakama pants were pretty popular last season and sold out in most places. What size are you? I am sure I saw a pair not too long ago on Yahoo Japan. If you are not to picky about colour and style, you could try a pair of the brown striped ones which I saw on sale from user jamesd (I think?) over on style zeitgeist. Might be worth a shot. Can't help you id those pants unfortunately, but hopefully someone else will be able to .
P4, I think that picture may just look that way because the silk moves around quite a bit. That jacket is the same cut as the wool gabardine stand collar jacket I picked up from that season, but in the printed silk. I have a better picture of it on its own if you are interested in seeing it. Let me know and I can PM it to you.