Hingham officials may be asking voters at Town Meeting to spend $2.9 million to buy the marina at 26 Summer St., but will have to see how the financial picture looks, especially after an expensive winter. “There are a lot of competing priorities this year,” said Irma Lauter, chairwoman of the Board of Selectmen. She said the town is facing approximately $1.8 million in bills for snow-related costs. But, she said, she would also like to see the town own the property at some point. A tentative proposal calls for the town to buy the marina and lease it to the current owners for two years, while it determines how the property best fits in the larger harbor development plan, she said. Town Meeting is April 27.