This is the AR500 website. Its popular among the famous preppers on youtube.
What I dont like about the carrier is the way it attaches around your sides. Try running with that and your plates will probably beat you up. Your a big guy so it might not be so bad for you.
I dont like steel plates because of what happens when a round stikes them. The bullets break apart and pieces go everywhere. Ya, it stopped the bullet from going into your chest, but it sent it straight up into your face.
Ill pass on steel and go with ceramic.
For a carrier the tag banshee is nice, I had a Mayflower low profile. Id seriously go over to ar15.com and find a "used" carrier over there. They will say its used, but its only been used to model their badassness in the mirror and then it goes back in the closet.