i can sell you one for less than this
http://www.ebay.com/itm/Toyota-Pickup-Heater-Core-4runner-4x4-2wd-sr5-84-85-86-87-88-89-EFI-22re-Heat-95-/272094681340I have a heater core with the hard lines soldered to it from my 88 pickup truck which had 132,000 on it and nice heat, didn't overheat, just had popped the passenger leaf spring off the front hanger cuz the frame rotted on the freeway haha drove it home then commenced with the tear down and i still have the whole heater core box minus the black shroud on the bottom - I would prefer to sell the heater core with the hard lines still soldered to it.
PM Me, it's on Amazon.