Nose as in the front bumper cover? If so, the best (cheapest) place is to PM FORDSVTPARTS on here for it. I think the total is about $280 before shipping which should be about $55.
Headlights however, you can find better prices than Ford. Ebay usually has some. I think Steve (FORDSVTPARTS) quoted one headlight at around $75 or so. Hope this helps.
Yeah, if your other one is used much, or has any fogging, the new one will look clearer and cleaner, but typically these headlights don't fade much. I was just asking because I have a drivers side one layin around thats all.