What do you mean by "so I can get their dex entries for the shiny Haxorus"? I could easily send you a Tepig for keeps if you want it; have two babies with Egg moves attached to them. You can train them to evolve into Emboars. More fun that way.
Skitty I don't think I have in Black yet (I have one in Emerald, can't import yet), and I can get you a Rufflet as well (again for keeps, it evolves to Braviary).
I could literally clone a Pokémon holding an item to get extra items, so I'm not picky on items. If you have any items I don't have that would work for a first trade. But being in the Unova post-game, there are not a lot of items I'm missing (except perhaps from the Treasure Hunter on Route 13).