If some of our members who live in Washington and Colorado, have been successful in buying RAV4 EVs, then the same "process" should be applicable to you. You are just further away from CA, and further away you are, the more possible "issues" with that process.
In your case, the cross country "shipping cost" will be more significant, but probably you can find a shipping co. that will do it just as easily whether you live on the East Coast or somewhere on the West Coast outside of CA. Unfortunately, this cost is really a Crock of Sh!t because the CA Dealer destination delivery cost ($850, I think) would be the same whether the car was shipped from Canada to a dealer in California or in Florida. However, you more than make up for that waste of money, i.e. if you buy this month, because you would get the $6k off MSRP and 60 month financing at 0% just like any other buyer regardless of where they live in or out of CA.
As far as Level 2 charging, the RAV4 EV has the same industry standard SAE J1772 charge port connector, as do most all other EVs for sale in the U.S. market, so I presume YOUR L2 EVSE supports that as well.
As far as a local Toyota dealer near you on the East Coast, I am not so sure they can service this car, at least not as an "authorized" servicing dealer. For one thing to work on the (Tesla designed) drivetrain and battery, and many of the electronic modules, I believe specially designed diagnostics and tools, unique to the RAV4 EV, would be required. To remove the battery from beneath the car, I'm certain VERY specialized equipment would be required. A local dealer would not likely want to purchase such - likely to be expensive - servicing equipment for just a handful of RAV4 EVs in his local service area. I think this equipment on hand is really the only difference between a so-called RAV4 EV authorized Toyota dealer and any others outside of CA. Even in CA, not every dealer may have committed to obtain the necessary tools (and service tech training) to work on this vehicle.
Because of this, you probably would be at greater risk the further you are away from an "authorized" dealer.
Nevertheless, the RAV4 EV is a truly phenomenal electrified SUV, so if you are up for the cross country shipping hassle, and quite probable less than steller support from your local dealers, I say, GO FOR IT!!!