Cost will be $1900, of which $800 is panels, $400 is shipping, and rest is roof racking, wires and a breaker box.
That's doing my own installation and with the house already having suitable gear inside (fuse box, charge controller, inverter). An equivilant system including the inside gear would probably be $4000-$6000, not including batteries. With professional installation, probably some percent more..
testbeta likes this.