I just consulted with the local SF Express, and I learned that packages weighing less than 2 kilograms can be shipped. This solves the delivery problem. After a simple cost calculation, the total cost of accessories, consumables, plus charger and shipping is around 200 yuan. Initially, I thought it would be relatively simple: just add the battery, protection board, and case. Now, I want to get everything ready at once, including all wiring terminals, XT60 connectors, current/voltage meter, switch, and charger. The more, the better. Even small accessories can add up to several tens of yuan. The initial estimate of 200 yuan was not enough. Haha. If I do this, I will prepare for a cost of 200 yuan plus labor costs. We'll form a group of 5 people and gather together to start. Free shipping to your home. I hope you all have some good suggestions.