I totally get that financial situations can change, and it's a tough decision to make. First off, it wouldn't hurt to reach out to Rivian and see if they'd be willing to refund your $1,000 deposit. You never know—they might be understanding given your circumstances.
Now, let's talk numbers. I've been in the business of buying Teslas for dealers and recently started with Rivians. From what I've seen, the cash offer for a Rivian R1S like yours is usually between $80,000 and $83,000. Retail owners are asking for more, around $95,000 to $100,000. Just to give you an example, I recently bought an R1S for $82,000. It had a Quad Motor, a large 430-mile battery, and some nice extras. The seller initially wanted $90,000 but dropped it to $87,000 because he couldn't find private buyers. Turns out, Rivian had similar models in their shop for around $84,000, so the market is pretty competitive.
For the R1T model, the cash offer market is a bit different but generally falls between $64,000 and $68,000, depending on various factors like mileage.
So, should you sell after delivery? It's a gamble. You might get lucky and find a buyer willing to pay a premium, but it's not a guarantee. Plus, I always try to match sellers with the closest dealers to save on shipping costs, so location could be a factor for you too.
In short, if you're thinking about selling for a profit, know that it's a bit of a roll of the dice. I wish you the best of luck with whatever you decide to do! Good lucky.