세도나 (Sedona) is the name of a SUV model sold by the KIA motor company (Sedona is actually a city in the western US which is famous for rugged desert landscapes with red rocks. KIA adopted it for one of the vehicles they sell). So 이 세도나 II로 하겠습니다 means "I will choose this Sedona II model". 하겠습니다 here means 택하겠습니다 or 선택하겠습니다, which states the choice the speaker is making.