As jayhawkroy implies, no proper timing belt job involves only the replacement of the belt. But one can’t count of a standardized list of what will be done. Get a full and complete list of what - exactly - will be done with the belt and post it.
Just FYI: Most of it is probably wise to do, and most of the cost of a timing belt job is in the labor. However, giving people a breakdown of the estimate - parts & labor will help in making comments about whether or not the price is in the ball park.