Awm rifle animation in blender

I want to make animated video of working mechanism of awm rifle. Looking for animator who can understand the working mechanism of awm rifle and make animation according to the script. A full script with rough images will be provided. I will also provide some useful links of youtube video from where he can understand its working mechanism. The animator can download free 3d model of awm rifle from https://sketchfab.com/3d-models/l96a1-e46ec65c62dc4173ae2f415b21e406ed Animator will have to model some additional internal parts which are necessary for explanation and make animation and send me blend file. He need no render the animation. The video quality will be similar to this video https://www.youtube.com/watch?v=Mdhn73bMBVc&t=53s. Animation length will be about 4 to 5 minutes.