How to fit all 18ESP components in the box

About 18España, from BoardGameGeek:

An 18xx game set in Spain. 18España is a game inspired by the basic mechanics created by Francis Tresham in the 70s for 18xx games. In 18España, players assume the role of railway investors, and they will buy and sell shares of railway companies in the stock market, searching for the most profitable. Usually, the greatest shareholder of a company will become its director. As director, the player will decide all operations the company will make, such as laying track and stations, running routes, managing the earnings and purchasing trains. Play consists of an indefinite number of sets of rounds, these sets consist of a stock round and one to three operating rounds. The game will end when the most powerful trains come into play, and the richest player will become the winner, counting cash and the share portfolio. In addition, as special features 18España has a lot of mines, two maps that differentiate the zones in which narrow and broad gauge track were built, mountain passes that connect these two maps, major and minor companies, takeovers, different type of trains, etc. Although it is not feasible to do it completely, 18ESP has been designed to be as historically accurate as possible. Finally, the game presents a variable randomized setup, which means the game will be different each time it is played.