Congrats! After 6 years I still smile every time I get in mine.
I don't think it's easy to change your username, though I think the mods did it for another user once. (gg_wants_a_tesla, was it? Now gg_got_a_tesla. Perhaps you could be CurrentOwner. Given the color you might be able to pull off CurrantOwner as well, but I think CurrentOwner works better for an EV).
If "Battman" was available I'd get that. But I don't have a vanity plate.
Why would you want to avoid accessories? Collect the whole set! No, seriously, I bought a stripped Roadster (at the time I ordered, it was unclear Tesla was going to survive long enough to send me a car, and I didn't want to send them more money than necessary - you had to pay up front before they would start building back then) and while some things like the adjustable suspension would be nice, I really don't think I'm missing out on much. Though I will admit to sending a note to the local parts counter an hour ago asking what accessories they have in stock, just in case I want to add some if the Roadster 3.0 package looks compelling.
Jeff, 2 quick tips: 1. get the logs on a USB drive; instructions are in a few threads already. 2. lots of scams and cars with dealers and such that don't know how to take care of them; if it is not local, ask here and perhaps some owner that knows what's important to look for will be willing to take a peek. Sellers are usually comfortable with another Roadster owner checking it out.