What to do if I have a good proposal for experiment but don't have an ability to fully conduct it?
If I were you, I'd look for a friend who is a postdoc/professor and he, or someone in his research team is good at coding. If they are interested in the problem, I could start with them.

Alternatively, I would ask my friends to put me into contact with someone in machine learning who can also code and might be interested in the idea. 

Once you start working, you could contact the original author for questions, and in the likely event he's interested in what you do, you could ask him to help you with the work in exchange for co-authorship.