Boat Yard Object Removal

I have a short video of my boat sitting in a yard, but every shot is cluttered with neighbouring boats and a few advertising banners. I need those distractions gone entirely, not simply blurred or covered—when the job is done it should look as though my boat was filmed alone in its natural surroundings. Here is what I will supply: the original video file in its native resolution and frame rate, plus a reference still that shows the parts of the yard I would like retained. Here is what I need back: a professionally cleaned version of the same clip, same length and resolution, where every other vessel and banner has been erased and replaced with consistent yard / sky / ground that matches the scene. No ghosting, warping, or jump-cuts—just a seamless, natural-looking environment around my boat. I plan to use the finished video for personal keepsake purposes, so absolute realism matters more to me than speed. Please let me know a realistic turnaround time, the tools you intend to use (Mocha Pro, After Effects, DaVinci Resolve Fusion, etc.), and whether you can provide a short water-marked preview before final delivery so we can be sure no artefacts remain. If you need any additional reference frames or a clean plate, just ask.