A 35-year-old woman with known otosclerosis presents to the ENT clinic for management discussion. She has bilateral conductive hearing loss (air-bone gap 35 dB on the right, 25 dB on the left) and moderate tinnitus. She is a teacher and wants to restore hearing. Right ear audiometry shows a Carhart notch at 2 kHz. She is otherwise healthy with no contraindications to surgery. What is the most appropriate next step in management?