700XX nerf bars and skid plates

I have a 2008 700XX and I am hoping to add some nerf bars and skid plates. The problem is after market parts for these bikes are getting hard to find. I was wondering if anyone has found that some parts from other machines fit the 700xx? For example would the nerfs from a 450R or 400EX fit the 700 with minor modifications? Or would the engine skid and front a arm skids fit the 700 from another model?