All right, so. I managed to get my English guide a bit early, and...
Garb: 72 (74 if you count XIII/XIII-2 set)
Weapons: 70 Weapons (72 with XIII/XIII-2 set)
Shields: 40 (42 with XIII/XIII-2 set)
Also, there are three special garb (not included in the numbers above) in the game that replace existing garbs. Your gift from Hope on the final day of your first playthrough are the garbs Dark Muse+, Mist Wizard+, and Equilibrium+. The guide has the Seven Samurai, Cloud Set, Aerith Set, Yuna X Set, Yuna X-2 Set, Tomb Raider Set, Moogle Set, Cosmocrator Set, and Celestial Body Set listed for stats and abilities as "DLC or pre-order bonus". That should be 15 DLC garb/weapons/shield, bringing the full game total to 87 (not counting the three garb+) garb, 85 Weapons, 55 Shields. I will update the front page when my copy of the game finally arrives and I can start matching English names to screenshots. Some garb retain their original names pretty much, while others seem like they are completely different.