Happy for you and know the excitement and anxiety of waiting for a new truck to arrive. I would like to say though, as someone who also just got a new 2021 Ram with the 3.92 axle, really think about your muffler (or delete) decision. The 3.92 axle means that at highway cruising speeds (around 104km/hr to 115km/hr) you'll be in 8th gear and around 1800-2000 rpm, and at that speed and rpm's your exhaust is going to drone like crazy, and it will be pretty unbearable in no time. I put on a Flowmaster Super 44 and at highway speed/those revs it was really bad, so I cannot imagine how much worse a straight pipe and deleted resonators would sound. Forget about listening to the stereo, or hearing a phone call through bluetooth, or having a conversation with any passengers in the truck, you won't be able to think let alone hear those things.
I ended up with a Flowmaster 50HD and it is MUCH better now, hardly any drone, and if there is it's bearable, and you can still hear the stereo or passengers etc.
I know it's a personal preference and to each their own but, I would honestly think twice about straight pipes and deleting resonators. If you drive highway a lot or have people in the truck, you'll regret deleting them all I feel.
Either way though, congrats on the new truck, post pics, would love see it. I've had black vehicles about 4-5 times now and won't ever again, again just personal preference and experience. They look amazing when washed and cleaned up but 5 mins later I see the dust or dirt and it drove me crazy, being a neat freak lol. This time around I got a 2021 Classic in Granite Crystal Metallic, still on the darker end of paint shades, but not quite as bad showing dirt and dust.
It's also fine at higher speeds as well. So time will tell for me. 
