You didn't mention whether you were reloading for 2 3/4" hulls or 2 9/16" hulls.
If you get the Mec 600 jr. you will like it, easy to use and the ones made now are fool proof, meaning that the slide bar can only be pushed one way. There is a metal bar that prevents the charge bar to move except when it is called for.

If you join the 16 Ga. Reloaders Society and then join the 16 Ga. Reloaders Group the cost was $40.00 for both and that is a one time deal. There are so many loads to pick from and great information as well. http://www.16ga.com/home/home.html

Finding hulls is another story, forget the Winchester AA, not around any more. You could use the Remington Gun Clubs, black hull or I was using Ballistics Products , their 16 ga. Cheddite hulls that are 2 9/16" and already primed with Cheddite primers, but I see that they don't carry them anymore.
Either Grafs or Ballistics Products carry 2 3/4" hulls and Ballistics Products has one 16 ga. 8mm brass that is 2 9/16". These are red in color, the others were yellow and a decent shell to reload. I use a Mec 600 Jr. for the 2 9/16" hulls but I roll crimp them, so the last two stages, start crimp and final crimp are left out.


David