I'm not sure about dealer price, but when I was comparing prices in September I used the Edmunds, Kelley Blue Book websites all as references to what a Rogue was priced at and what people were getting one for. (When I was looking there was not much data on 2015, so I went off the 2014 prices since they were similar at the time. I'm not sure if you will have to do the same.)
I believe both websites have the option where you can add all your accessories/options, but I just went by the base price (without options) and added the MSRP of the accessories/options to the estimates to get an idea of final pricing.
If you're looking for something very specific, the Nissan Build-A-Car website was very useful for me, because you can select exactly what you want and see the inventory at dealerships around you. I just checked this every couple of days to see when one was available near me.
Also a helpful reminder, if the Rogue you're looking for is in high demand/low supply in your area, dealerships will know this and they won't want to give much of a discount off the MSRP. Think about if it's more important to get a really good deal and wait it out or just buy one now when there's one near you, but with a smaller discount. (It depends on your situation, just saying this from experience!)
Good luck!
Edit: We also have this thread that might help...
price-paid-for-2nd-generation-2014-rogu ... 63-30.html