Modernization of two existing fireplaces

Hi, i would like to replace existing fireplaces on the ground floor and basement with some modern ones. The house is in 1349 Rykkinn. Attached are the pictures of the existing ones and mentioned below are the solutions i am thinking of but feel free to propose other solutions Ground floor (white painted): (info fjernet) Basement (built with red chimney ): (info fjernet) Please share your offer, expected start of work is in 3rd week of Feb 2026 (Week#8). Best Regards, Talha