Hello,
Here's my bid to develop the tool for you which will create list 3 from list 1 and list 2 and I am ready to get started now.
If you just want to use it for one time, I can create list #3 manually for you for a cheaper price.
I am full-stack PHP developer and have worked on various technologies for the past 15 years including VB.NET, .NET and Visual Basic.