The price should have dropped a lot more unless they were already throwing you a discount for a promotion/nice guy deal/loyalty/whatever. Like Sinecure said, VPP is invoice, and it's easy to calculate invoice plus options plus tax and fees.
I bet they can convert the lease to a sale. Basically IFS will convert the lease into a loan and pay the lease off from the loan. Then you own the loan and make payments like usual.
Your last minute option, if the dealer won't budge (which I seriously doubt will happen) is that you pay out the lease like normal, month to month, then buy the car at the end of the lease for the residual value price which was already negotiated and set in the paperwork for the lease.
If my crystal ball is working, I think you maybe underestimated your annual mileage and will end up putting extra miles on it during the course of the lease. If this is the case, and you're not returning it at the end of the lease and are instead purchasing, you can't get dinged for extra mileage. Of course, I'm just guessing at your motivations here.
Sidenote: I know many people that have leased, put on extra miles (5k or more in some cases) and rolled straight into another lease on a brand new model without taking a hit from the dealer. For some reason, that new lease sale is more important to the dealer (and your returning loyalty) than extracting a few hundred bucks from you and letting you walk.
Last thought, can you throw out your configuration and color choice? People like to see that.
