On MRAP front the military is getting rid of them for a good reason. They ordered the initial batch very quickly and ended up several different platforms [0]. None of them fit the bill perfectly and having several variants made logistics and vehicle operations difficult. They then did a real procurement program and ended up purchasing several thousand M-ATVs. The surplus MRAPs went into this law enforcement give away system [1].

0 - http://en.wikipedia.org/wiki/MRAP#MRAP_deployment

1 - http://en.wikipedia.org/wiki/MRAP#Post-war_reductions