Question about Packet Sniffing Items On Ground with c# Program

[mmmgiggity]

I am attempting to create a very simple C# Program that will track unidentified items on the ground by sniffing packets.

I can currently grab Packets and display them but have some conflicting answers regarding how to log only items that are unidentified and are on the ground (ie. dropped from a mob).

Is this information still relevant?

In Diablo 2 Resurrected, when an item is on the ground and is unidentified, the game client sends an item drop packet to the game server with the following structure:
d2itemsniffer1.PNG

The Quality field in the packet is used to indicate the quality level of the item, and it can take one of the following values:
d2itemsniffer2.PNG


I am unsure how to parse for this data in my code utilizing:

theType = ip.GetType();
 ipToString = ip.ToString();
 udpPacket = packet.Extract<UdpPacket>();

 if (udpPacket != null)
 {
         var data = udpPacket.PayloadData;

          // parse data here and check
            // what do i look for?
 }

I am willing to pay for help if it is too complex for one to give advice.

Thanks.