The bearings in the front hubs are not the same, and it doesn't seem worth it to modify the whole front end to use the mazda arms and what not.
The hardbody front bearings and certain year toyota front bearings are supposed to be the same.....see where I am going. hub swap.
The toy parts should bolt right up....there used to be a tech article on
www.nissanminis.com
While you are at it....pick up a mid eighties toy rear end, it's narrower, and the same five lug pattern. Just have to do whatever is necassary to hang it in the back of your truck.