G'day bbrown,
Comments above are correct, its near impossible to move them off MSRP especially early on in a model year. The dealer set up charges are different and are usually around $4-450. $5,500 for extra bits is also something they can bring down as they are charging you full freight on all that shiny (or blacked out) stuff. At $1500 for set up it sounds very much like they are bending you over a barrel mate, and while this is their job you do not have to go along with it.
Temper your desire for your new toy with some patience, do some research and get the numbers. A little 'caveat emptor' goes a long way in helping you make an informed decision and should leave more money in your pocket for fuel.
I recommend you go online & find several dealers (it does not matter where they are located, they will still sell you a bike), who are advertising at MSRP and email them to get a quote for an out the door price including tax, title, etc in your state. Also get a separate quote for your additions (Boardtracker HD will be 20% cheaper for that stuff out the gate & some dealers will match that price if asked), also ask what the labor cost for adding your shiny bits is & then you have your bottom line. You then tell the dealer you are currently negotiating with that if they don't match your best quote you will be forced to take your business elsewhere as they are not competitive. If they come to the party all is good and if they don't then buy it from the best quoter & fly there to pick it up. Bonus is you get a nice ride home on the new ride to start with.
The best time to buy is at the end of the month when they are trying to improve their units sold number for the month as they become a bit more inclined to negotiate.
Good luck mate.
Cheers Tom