I've seen guys buy just the diff alone for that.  And your getting a complete axle?  Around the PNW most parts aren't cheap, too many tight wads wanting top dollar for everything.  Some people just get lucky and find smoking deals.  The biggest issue is how do you feel about paying that much?

There has been reports that the axle housing is not as strong as the hilux housings.  Especially around the suspensions mounting points.