No way a 62 kWh pack from Asia for $6,000 is an assembled pack. It is not proven long term.
An assembled pack usually is paid for in full before it is shipped, then it takes 2-3 months for it to arrive.
The tariffs from certain Asian countries is pretty harsh. So many are moving their operation to ship from other, lower tariff countries.
If anyone in the US wants to gamble their $$$$$ on an Asian pack, let me know, I'd be happy to cut you a deal on the install labor just to see the mess your money buys. None of the companies have been willing to send (discounted) packs here for evaluation.
Seriously, call me 608-729-4082 You can be the guinea pig and let's roll the dice using your cash. Sounds like fun.