Crown Molding Installation Needed Throughout Several Rooms

We recently finished repainting several rooms on the main floor of our house and now want to add some real character to the walls with decorative crown molding. The plan covers the living room, the dining room, and the hallway that connects them, which together add up to roughly 140 linear feet of ceiling line. The ceilings are standard height, mostly straight runs, but there are a few outside corners and one arched doorway opening that will need careful coping and mitering to look clean. We are not looking for the cheapest possible job — we want tight seams, properly coped inside corners, and a finish that looks like it was always part of the house.

We have already chosen a mid-size classical profile in primed MDF and can either supply the material ourselves or let the contractor order it if that is easier and the price is reasonable, we are open to discussing that. What matters most to us is craftsmanship: no visible nail holes after filling, no gaps at the joints, and a level, consistent reveal along the whole run. We would also appreciate some guidance on caulking and touch-up painting once the molding is up, since we plan to do the final coat ourselves to match the existing wall color exactly.

Please only reach out if you have real experience with crown molding specifically, not just baseboards or door casing, since the coping work and the arched opening require a different skill level. We would like to see a few photos of similar finished rooms before hiring, and we need someone who can bring their own tools, a laser level, and a miter saw suited for crown stock. Requirements: measure and confirm exact linear footage on site before starting; cope inside corners rather than double-mitering them; fill and sand all nail holes and seams smooth; protect floors and furniture during installation; clean up all debris, offcuts, and dust daily; provide a rough day-by-day schedule so we can plan around the noise and the movers.