1st of all thanks for sharing this post and your experience.

"UPDATE"

I spent total 100.320 cps till now on Konoha tree, 37.400 cps I guess till lvl 7 then I spent 72.820 cps on lvl 7.
The packs I got from lvl 7 are:

- konoha great tree item optional pack 501

- konoha great tree advanced optional pack 69

- konoha great tree ninja optional pack 64

- konoha great tree luxury optional pack 34

Good luck everyone.