This is a brand new part , fairly sure it's from the 2006 TMCC big boy ( as a reference this product number could be used to view the part on the lionel parts sight 6-11104 ) Again this is for only the upper shell.
PART NUMBER 6101104005 LIST PRICE 260.00
WILL SELL FOR 100.00 PLUS SHIPPING TO CONUS
Email me if interested
PAYMENT - PAY PAL , CHECK