These are the cells I used:
https://www.aliexpress.com/item/1005...21431802QENEyV
Were I to do it again, I might give these a try, simply for ease of assembly:
https://www.aliexpress.com/item/1005...KRbXKRbO8&mp=1
You may be able to find a better deal on the Liitokala cells. I can't easily see the shipping rate to the US.