MULTIPLE CLONE EDIT ( USING MASK OR ROTOSCOPE )

[Logesh388331687g1o]

Hi , 

I am very new to after effects, I am open to learning anything needed. I need to make a Multiple clone scene ( the link i have attached below ) similar to the clip. I have taken the shots without the Mocobot ie just a left to right panning shot 7 times , as it involves 7 clones. 

Could anyone help me how should I edit it so that i can see mutliple clones in the clip. Also there seems to be a little problem with the timing of the 7 clips , one starts to pan early where as other starts to pan a little late ( which i believe requires frame to frame editing).When I masked the clones it does not overlap correctly over the Base Layer, I started editing frame by frame (it took hours for one sec ) but even then the results were poor and is there any way to do it better and quicker . Every clip was captured at 60fps 4k in an iphone. 

I own a laptop with 16gb RAM and 3050 graphics, I request you share your opinion on how to edit in simple terms as I am just a beginner. 

Link : https://youtu.be/d2Wjw4sOP3c?feature=shared