A little late to the thread question regarding but figured I'd share, in regards to price-protection & the 2HR/2GR.
CLARITY - I do not know if we are the dealer you're speaking of, and I appreciate you keeping them both anonymous while posting.
The packages/components that are on the build sheet should be all price protected once a VIN is assigned (D Status), that's on the price order confirmation sheet. - I'm not sure why a dealer wouldn't protect the whole build.
What's not protectable is 99% of the rebates/incentives/affiliates, they all have to be validated again and again.
If you make a change to the build order unit while it is in D status, you could be exposed to price increases - but not always - it's a risky move and best to ensure you have the build all set before submitting.
Also it looks like 2GR is the package that has the -$1,095, that is the HEMI. The 2HR is your CUMMINS turbo diesel @ +$8,600 (MSRP figures).