If John Burkhalter had been told 14 years ago what he would go through before he could turn dirt on the first phase of what will be a $60 million marina development on the Little Rock bank of the Arkansas River, he said his response would have been, "No, thanks." "It has been a long journey," Burkhalter said. But boaters on the river will be able to find safe harbor on their own journeys at the Rock City Yacht Club as soon as this summer, thanks, Burkhalter said, to a "finish