I am looking for the 500 (purple in color) and 1000 (yellow in color) NCV chips used at the MGM Grand in Vegas for their Poker Tournaments. Below is a picture from the Silver State Treasures web site of the 100 (black in color) NCV chip from this set. I have the 25 NCV and the 100 NCV chips, but would like to add the 500 and 1000 to my collection. Please email me with your asking price if you have these chips available. Thanks!