slates are good, however learn to cluck on a mouth call, the simple cluck will put more birds over your shoulder than anything else.
camo..... nothing special, just whatever breaks up your outline, mix it up use brownleaf on the lowerbody to match the ground, and treebark or Greenleaf upper body, thereby doubly breaking up your outline.
ammo? whatever shoots best in your gun that you have confidance in I mostly shoot 6's
chokes are inda all the same just buy one around .665-667 and find ammo it likes... pattern your gun, know what your max range is.
tone the calling down the last 50 yards, if you can see him don't call he knows where your at, if he can't see you scratch the leaves, that will do way more than calling once he comes to check you out. You've aready made hen calls so he's looking for a hen, make sounds of a hen scratching and that just puts the icing on the cake, double the chance there is a hen there and he will drop his guard a bit more. good luck
RR