So... I did the thing and picked it up last night.
New Port Richey Dodge did a great job, Sales Manager Chance Hatcher was excellent to deal with, he answered my emails and threw his hat into the ring early. Even though he didn't have an exact match, he offered me a good price, and was willing to match the price on a new unit. But he was able to find a pretty good match across the state (from a dealer who never emailed me back).
Financed through a local credit union at 2.75%, they raised their rates to 3.75% the very next day.
8.63% Difference between MSRP and Invoice
4.34% Difference between Invoice and what was negotiated
9.61% Difference between Negotiated and 'Final' price.
2019 Limited
Granite Crystal Metallic
4x4, 5.7L, 6'4" bed
Level 1 package
3.92 gears
Tow Group
Off Road Group
Pano Roof
$65,465 MSRP
$59,815 Invoice
$57,215 price negotiated
$51,715 after rebates (Consumer Cash, USAA, RAM Coupons, and trade in)
This does not include Tax, Tag, Title Transfer and the 'extended warranty' as I tend to keep vehicles for 10+ years.