The Book of Mormon vs. The Harry Potter Series

A dear friend of mine has been listening to my rants about the Mo's and asking questions here and there.  A question she posed over the past weekend was how could Joseph Smith have written such a complex book as the Book of Mormon.  I told her the Harry Potter series was far more complex than the BoM.  And truly, it is!  Let's take a look-see (we won't even need a peep stone!):

Total pages in the Book of Mormon:       531
Total pages in the Harry Potter series:  4,175

Number of characters (people), including very minor instances in the BoM:  140
http://en.wikipedia.org/wiki/List_of_Harry_Potter_characters

Number of characters (people), including very minor instances in the HP series:  >700 (I lost count, but you can go see by clicking the link below)
( http://en.wikipedia.org/wiki/List_of_Harry_Potter_characters )

Not to mention the hundreds of spells J.K. Rowling kept track of, along with events, descriptions of places, etc. 

So, could the Book of Mormon been completely made up by Joseph Smith?  Please.