Multiple Face Swap High-Res Photo

I have a single photo and want every face in it replaced with faces from another image, purely for personal enjoyment. Accuracy matters to me—I’d like skin tones, lighting, and perspective to feel natural so that the final picture looks as if it was captured that way in-camera... (Budget: $10 - $30 AUD, Jobs: Graphic Design, Image Processing, Image Recognition, Photo Editing, Photo Restoration, Photo Retouching, Photoshop, Photoshop Design)