Decided to fix it myself. While handling the screen and disconnecting cables I managed to damage Face ID sensor permanently.
Decided to take advantage and replace battery. In the process of removing the battery cable managed to damage it in such a way that cable now keeps disconnecting itself.
While trying to disconnect the battery cables by removing the parts near charging connector I managed to pull it a bit strongly and damage the charging connector that is connected to the logic board.
Even if I manage to repair the phone to the state it was (incl face id) with a professional it will cost as much as another phone.
With the experience above I decided I will think twice next time before trying to repair devices myself.
Update: typos.