It's a nice idea and I would be interested in it but I just did some testing...
It is not importing all of xvideos database or your software is only importing a fraction of the database.
Here is an example:
Search Tori Black on xvideos original site and it comes up with 13 pages or so of videos of her.
Search Tori Black on your clone site and it comes up with 2 pages of her.
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Another example:
Search Jada Stevens and the original xvideos site gives you 5 pages worth of her videos
Search Jada Stevens on your clone and there is less than half of a page of her.
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Same thing with Jenna Haze 10 pages on xvideos, about 2 pages on your clone.
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Another one Rachel Starr (900 videos)
http://www.xvideos.com/profiles/rachel-starr#_tabVideos
Seaching the same girl (less than a page, about 30 videos)
http://demo.reallyporn.com/search.ph...h=rachel+starr