You can find resistance wire on ebay, here is one link for kanthal wires:
Kanthal D - 0,13 mm, 10 m, Draht Heizdraht - 99,8 ohm/m | eBay
As for wick, if you want silica, so far only McMaster Carr. But if you don't mind fiberglass wick, you can try Wicks for Candles and Oil Lamps - Earth's...