It's impossible to say without knowing the dealer and his typical pricing. For example, when i was looking at speedmasters there was one dealer who absolutely would not take less than something like $9800 out the door. At the lowest price dealer i found, and there are about 6 dealers in my general area, they sold it to me for The list price out the door. Considering the cost of tax, license and setup and whatever else they add, thats pretty cheap and something like $1200 less than that other dealer, who would not budge even when i stood up, said i'll have to buy it somewhere else and walked out. So it really depends on the dealer. If thats the only dealer near you it's not going to be easy getting a low price.
When I bought my Tbird that lowest price dealer in my area always sold triumphs at at that price (whatever the MSRP was, you would pay that amount out the door) had changed thier policy and now the Tbird was gonna cost me $800 OVER list out the door. But i think they are still the lowest. So triumph's pricing may have changed at that point. But ind you, it takes some tricky wheeling and dealing to get the lowest price. But i have seen people in other states get better deals. So it also depends on the state, city, how many dealers are in the area, etc. So all you can do is try and see what others paid and do the math to get the average % off and see if you can at least get that. It wouldn't be easy to see what others paid for the bike you're buying because you are getting all those accessories so few if any who replay will have bought that exact same setup.
If it were me i would figure out what the total MSRP cost is with all those accessories including any labor, because they WILL want labor for installing them, then try and get that price out the door. They will likely say no, but you have to call thier bluff. I always say something like "$xxxx.xx is all i have and if you can't do that theres no way i can buy it". If they refuse say ok, well thanks and walk away. Many times they will stop you as you are heading for the door. Of course if it doesn't work you can't go back w/o feeling like a idiot.
But thats they way to scare them into giving you your deal because they know if you say that you can't go back on your word w/o looking like a fool. So they fear if they say no you will walk. It's worked for me many times. In fact, thats how i got that low price dealer to go $800 over list on the Tbird. They then called me a day later and said, "ok, we'll do your deal" ! However, by then i decided to buy elsewhere and pay more because they had the bike i wanted in stock ready to go and offered free oil and filter for 90k. I paid $700 more but oil and filter for 90k came to about the same price.