We use our R1T to tow a 26ft camper with a dry weight of 5600lbs, so we're often towing between 6500-7000 lbs actual weight.
It tows quite well with a WDH and suspension set to FIRM. Acceleration is never an issue. Crosswinds aren't super fun but aren't super scary either.
BUT I'd be nervous...
I don't know if I count as one or two, but I did have my big battery in our S replaced twice at the Denver SC. The first time because of a similar error code and the second time because they accidentally put in a battery without the enhanced off road protection :)
They actually did the second...
Nice! I'm thinking just like the Rola - soft sides with a hard bottom. That way you can still easily fold it up if you need it out of the way (and for shipping), and I don't think you give anything up.
I've been using a high quality trunk organizer from Amazon (the Rola one in the picture) in my frunk, and it's pretty nice. The bin walls are movable and the firm bottom + handles makes it easy to take out if I need to access anything below the frunk deck.
BUT it would be really nice to have...
I thought this one was really telling (as someone who was about to get a Model X when I discovered Rivian). This is an R1S vs Model X. It makes it look like a Model 3!