I never get hung up on incentives, invoice price or any other term de jour. Dealers and manufacturers just come up with all this BS to confuse consumers (and apparently it works). The only thing that matters is what you pay. The internet is your friend. Find a site like Cargurus and find the cheapest price and use that for negotiating with local dealer. At the same time decide if/how far you are willing to drive to get the truck you want for the price you want.
14% off MSRP on an expiring model year truck seems a bit light. Back in March of 2014 I got about 18% off on a 2014 model year Ram.
