Tesla only selling SR+ and P versions of the Model 3 in RHD markets is a good sign for Model 3 demand IMO.
During the Autonomy Day presentation, Elon said they would favor small battery configurations to maximize the number of cars on the road.
Offering only SR+/P and not LR AWD in RHD markets suggests that Tesla is doing exactly what Elon said they would -- favoring smaller battery cars to get the maximum number of cars on the road. Implicit in this plan is that demand for Model 3 will outstrip cell supply. Otherwise, the logical thing to do would be sell higher margin LR AWD cars.
Even if margins are lower this also should maximize revenue and cash flow since Tesla can sell ~3 SR+ for every 2 LR variants (assuming ~50kWh v. ~75kWh batteries) if it is cell limited.
Together with limited Model 3 inventory availability (the parking lot truthers seem to have crawled back into their holes) and Elon's email last week, the signs point to demand for Model 3 being very strong going into Q3.