I have been tempted sometimes to order a custom video, but in the end never did it. Would have been too expensive for one little video.
Lately I've managed to find a few webcam couples that find the idea of lift & carry interesting and are eager to try any kind of lift that I manage to describe to them.
So far the video ideas I've had they managed to do very well and the videos I get this way are far cheaper than "professional" customs.
My latest treasure (as I am a fan of f/m with a good portion of struggling) is a 17 minute clip where she carries him piggyback up and down many many stairs with just a few relatively short breaks. Point of view from the liftee towards the legs, just like some of the videos of Shecarries.
All in all it has been a very good deal trying this approach.