I'm not an expert by any means, this is just how I'm looking at it with these Northern VA/DC/MD dealers. Their true dealer discount on this truck is the $6379 - $1695 Freight - $799 doc fee = $3885 which is a dealer discount of just over 7 percent, which is probably somewhere in the ballpark of invoice price. Some people may not factor the doc fee into the dealer discount just writing it off as something they have to pay regardless, but some of these places are charging up to $995 for this BS fee. It's smoke and mirrors the way they breakdown their pricing, but anything outside of the TTL costs is the price of the truck to me. And just for reference, you can factory order a 2021 with other DMV dealers, Criswell and Koons, in the ballpark of 10-11% dealer discount that already includes freight. You just wouldn't know what rebates would be available when it got here.
Your $8000 in rebates is pretty good, do you know which ones they are specifically? Do you qualify for the truck owner conquest $1000 rebate? I also assume this has you financing with Chrysler Capital for at least $1500 in rebates. If so, you'll probably want to refinance at a better rate. I'd be curious to hear any details you can provide here as I'm in the Mid-Atlantic region and the rebates are close to good enough for me buy, but just not quite there.
All that said, this deal puts you at over a 22% discount which I think is pretty decent deal on a Big Horn CURRENTLY, but in reading this thread some people have gotten 25-30+ percent off these trucks in different times. I'd start by pushing back on the freight being included in the MSRP, then the high doc fee. If they won't budge on either, maybe you could tell them they can keep the $799 doc fee as a separate line item, but you'll need them to take another $500 out of the price of the truck. If they'll do any of those things, then this deal becomes even more palatable, but if it's the truck you want and you're happy with the deal I'd go for it. Again, just the opinion of one man who's currently sitting on the sidelines waiting to buy. Let us know how it goes.