Ya your front end is different, Id like to know who built it, it looks a lot like a narrow Laeger clipped to a stock frame. 
Basically a Honda with longer lower arms. Good setup.  It needs a little more bracing if you didnt run in the sand. If it ever clipped a tree or something solid you would have the same flex and bend issue as a 500.

In the end you got a great setup for a good price though.