Titan Outdoors will be hard to beat.
https://www.titangreatoutdoors.com/hunting-and-sport/shooting-targets-and-stands/?lang=default#
https://www.titangreatoutdoors.com/hunting-and-sport/shooting-targets-and-stands/?lang=default#
I'm sure they could, if they are willing to order a 4'x8' sheet of AR 500 plate. As far as that goes I have a torch and a plasma cutter I guess I could have cut my own. But what would I do with the rest of the plate? I'm going to go out on a limb and say you can't beat Field and Caves price or quality.
Well I have a Round Plate 1” thick 10 or 12” Dia. Very Hard and impossible to Drill .I know shipping on these is a booger, so take that into consideration , Thanks