I'd like an extra portable level 1 charger to keep at home and keep the Toyota-supplied one with me in the car (in case I need to park next to your house and plug into one of your outdoor outlets). Anyway, I only see the Leviton one for sale through Amazon or Home Depot for around $900. Are there any other choices available (especially online)? Legrand makes a big deal about their portable charger that cost $500 but I don't see it for actual sale anywhere. Might Toyota Parts sell them?