Its not exact because there can be min (getting 10 points every time) and max (getting 5 points every time) on the lucky board. But there is a discord server that updates with the event prices for ninja in non-RNG events. Invite link: https://discord.gg/ZDWWP2

Kushina: 5,280-10,560 coupons/ingots

Shisui: 8,800-17,600 coupons/ingots

Lee: 2,400-4,800 coupons/ingots

Fukuro Battle Armor: 2,500-5,000 coupons/ingots