dude you can buy bricks fucking everywhere, with cash. this isn't some kind of controlled substance, it's not even watched goods like fertilizers that can raise eyebrows. nobody bothers recording or tracking that shit, it's just too mundane.
construction equipment? posisble, but not necessary. you get a couple of guys with you, they'll load or unload your pile of bricks within a few minutes, and make a nice orderly stack of them too, all it takes is a functional pair of arms/hands. dress them up in work boots and helmets, and clothes that look vaguely like what you see at a construction sites, and normies on the streets won't even bat an eye at them unloading that shit on random street corners.