$1,000 to $1,250 assuming it powers on and throws no errors.
Who's paying $3,000 for a printhead?? A DX4 head can be had for $900.
I though the OP was asking how much in its current condition, not repaired.
This printer uses a DX5 head and they are pricy. For $100 or less you can buy a used, working, old Epson desktop printer that has an unlocked DX5 head and use it. Just be sure to re-use the solvent resistant manifold and gasket and don't use the manifold from the desktop printer. Instead of a new maintenance station, you can buy a new pump and new cap top and a new wiper.