Very difficult rotoscope/masking job on a 25-second video clip of animated trees moving by the camera

NOTE: This is a difficult project. Please do not bid on this project until you have carefully read the description below, and after you have looked at the video clip that requires masking (see below). Thank you so much! I need this project done within 5 days. This is a very difficult and tricky rotoscope/masking job on a 25-second video clip. It's too tricky for Roto Brush or Keylight or Luma Key in Adobe After Effects, and it's also too difficult for Color Key or Ultra Key or Luma Key in Adobe Premiere Pro. It really can't be solved by any sort of chroma key or traditional rotoscoping solution in any software. Instead, this is going to require a very careful, keyframed mask in Premiere Pro. Or, possibly even exporting every frame of the video as individual JPEG files from Premiere Pro, using Adobe Photoshop to individually mask each frame, then re-importing the JPEG files back into Premiere Pro as a single final video file. This video clip has 750 frames. This project will require individual masking on each of those 750 frames. If each frame requires about 6 minutes of work to do the masking, that would be about 75 hours of work. Another freelancer already attempted this project, but very understandably discovered it was too difficult and time-consuming. I could do this project, but it would require more time than I have available, so I am looking for a freelancer who can take on this project. Please take a look at the 25-second 4K video clip (750 frames of 4K video) that you can download from here: [login to view URL] The above video clip shows an animation of some trees moving by the camera. If you look closely, you'll notice that there is a row of trees going by in the foreground, and there are additional trees in the background. On a frame-by-frame basis, I would like you to put a mask around the row of trees in the foreground, to remove everything else from the video clip (the background trees, the ground, etc.), so that all that remains is the row of trees in the foreground, moving by the camera, and everything else in the video is transparent. The trees are "spindly," with tiny branches, etc. This is part of why this project is so difficult, and it is why the masking must be done on a frame-by-frame basis. As the end result, I would like you to give me a version of the video containing only the foreground trees, and everything else in the video frames is transparent. I would like you to give me the finished video in .MOV format using a codec that supports transparency that works with Premiere Pro, such as the QuickTime PNG format or ProRes 4444 codec, or any other codec in a .MOV file that can be read by Premiere Pro, where Premiere Pro sees the transparency in the video frames. I realize this is a difficult, time-consuming, and painstaking job. There just isn't any other way to do it. I appreciate this help very much, and thank you so much for looking at my project!