A very naive statement...
Trump may not need the GOPe money or Super pacs, but he needs their political process...
That process is the delegates from each state who vote in the convention.
That process can and will be manipulated not to Trump's advantage...
With the continuous process of democratizing the GOP selection process over the last few decades, by far the great majority of delegates are sworn to the candidate who wins the primary election (and caucuses). Certainly the party will control the caucuses (which is how it's done in Nevada, where the author is from), but the winner of the bulk of the primaries will carry in SWORN DELEGATES who must place their vote on the first ballot for that candidate.
It's common to have the nomination locked up long before the convention.
You mean their high tech computer program that failed on election day?