Developer Daniel Corp. has completed a deal to buy HealthSouth Corp.'s U.S. 280 campus for $43.5 million, with plans to transform the property into a hotel and new office building, as well as the possibility of restaurants and retailers at the site. But the firm's first priority is finding a use for the unfinished hospital that sits on the property, a $200 million half-finished facility that HealthSouth has unsuccessfully tried to market to healthcare users.