Hi there, I’m looking for someone to repaint my wooden staircase and banister. The stairs are about 12–14 steps with a couple of small landings. I’d like a smooth, durable finish in a light grey color. Preparation is important: light sanding, filling small nail holes, and masking adjacent areas. I prefer eco-friendly primer and a high-quality enamel or satin finish that’s easy to clean. Access is inside a two-story home in a residential area. I’d appreciate guidance on the number of coats and drying times, and I’m hoping to schedule the work on a weekday with minimal disruption.