Emily Aguirre is a good  sport .  The newly engaged New Jerseyan is temporarily giving up her new home — which she and fiancé Gerardo just spent roughly $10,000 remodeling — to strangers in need of a cozy place to stay this month.  But her sacrifice isn’t exactly altruistic. It’s economic.  “This is supposed to be our first home together, but because the FIFA World Cup is bringing thousands of soccer fans to New Jersey, we decided to renovate the house, postpone moving in, and rent it out for