Harsan Bar'khour is the vendor that Ice wizards need to seek out to buy their clothing recipes in Krokotopia. He is a nervous blue mander that can be found standing in the Entrance Hall right next to Shalek the Wise.
Only 1,234 gold will buy all three recipes for each outfit and the reagents are fairly common ones that are readily available throughout the spiral. These outfits only require basic crafting stations and Apprentice Crafter rank.
There are many many different outfits available to wizards and I'm not going to claim that these are the absolute best ones. However, when it comes to giving a boost to both your primary and secondary schools the options for wizards at this level are pretty limited. While the dye shop doesn't give you many options, these outfits can be dyed.