Seriously, there are three choices - for $3k in a relatively short time, you'll probably want to do more than one.
Cut back your expenses. Take a look at your budget and cut out anything you don't need that you are willing to sacrifice for vacation. Around here, people have been known to sacrifice meat in their diets to get to Disney. Others sacrifice nice cars or nicer houses. Only you know your budget, sometimes it is the gardner (or the lawn service) or the pool boy (and cleaning your own pool).
Increase your income - there are several ways to do this. You could consult if you have the skills to consult. A paid speaking gig if someone will pay you to speak on a topic. Some people take a second job, some people have the opportunity to work overtime, some people pick up cans by the side of the road, some people sell their assets (whether that's stock in the stock market, or their kid's toys and old clothes at a garage sale, or their plasma). What you do depends on what assets (skills, stuff, opportunities) you have.
Borrow it. Not my favorite, but a valid choice. Home equity loan, credit card, line of credit from you bank, or money borrowed from a relative.
That's it. Without knowing what opportunities you have and what sacrifices you are willing to make, no one here can help you. You now need to evaluate what opportunities you have and what sacrifices you'll make. Frankly - after eleven pages you seem to brag about your opportunities, but be unwilling to make any sacrifices. In which case, frankly, it doesn't sound like the vacation is very important to you. Which brings us to the forth valid choice - stay home.