That kit looks amazing! Based on the way this kit was designed and configured, I'd say it was the top of the line for the MIJ product line. Is the snare chrome over steel or chrome over brass? Try to stick a magnet to it. If it really sticks, then it's COS. If it barely or doesn't stick, then it's probably COB. :) If it's really heavy, then that supports it being COB too.
What do the insides of the shells look like; thin or thick? How many plys? Do they have reinforcement rings? This will help determine the value. Based on the condition, you shouldn't have any problem finding a buyer, if you're selling.
-Tim