Seems to have been a throwaway line in a much larger answer saying how good deal it would be for Kim.
The following is the quotes if Trump from this Guardian piece, without their interspersed commentary.
—
“The model, if you look at that model with Gaddafi, that was a total decimation. We went in there to beat him. Now that model would take place if we don’t make a deal, most likely. But if we make a deal, I think Kim Jong-un is going to be very, very happy.” “This with Kim Jong-un would be something where he would be there. He would be running his country. His country would be very rich,”
Thanks for the complete text and answer.