Hello Hoskini
I can build either of these solutions for you: I am highly-experienced in Excel VBA: you could have a dialog-driven flow of questions, and based on each answer, walk a particular branch. If you need a web app, I could also do the same thing in HTML/Javascript and PHP, if necessary.
My time estimate is general because I don't know how big the tree is; that level of complexity will affect how it takes to complete.
Best regards
Brent