LEGO TECHNIC Ford Mustang Shelby GT500 #42138 | perfect replacement parts set

Ford Mustang Shelby GT500 Lego Set Boxed | Replacement parts - see pics This is AWESOME looking hot wheel set - BUT..... There are pieces missing. I know of one piece for sure... it is on the manual it is the #16 part the middle beige piece. I will try to take pic soon. There is phone number on the included manual that you can call and ask if parts are available to order. Also the box is a bit beat up (see pics) Otherwise, this is perfect for the person that collects legos and can use to fill out a set or break up and sell individually in lots for other wanting specific replacement parts. Originally this came with 544 parts. so, forgive me for not wanting to count them. I took a video and some pictures and am willing to take additional pictures if you need. There are the 4 wheels for sure! approx 10.5 inches in length is what I have read it should measure when completetd. ENJOY!