Another note to those who haven't gone through the "steps" at Rivian before, from my experience they start to bug you to finish financing/payment/signatures as the delivery appointment gets closer but you don't have to have it (and the "due at signing" payment, signatures, etc.) until the day...
It was two days after the "invite to order" email. I did all the steps as soon as I possibly could after I received notice and that's about how long it took.
Just like the normal flow for R1 (for those that have experienced it) - I first received the initial steps (which was uploading Driver's License and confirming address/contact info) and once done it said the financing page said they needed time to calculate taxes. The next day I checked back...
For another reference point: I was a first minute or so reservation. I have owned a Gen 1 R1T Quad traded up for Gen 2 R1T Tri (Cali Dune) and Gen 2 R1S Dual Standard (traded up from a Tesla MYP) and now trading to the R2.
I received my "invite to order" at Tue, Jun 9, 9:35 AM MT (Mountain...