Best time to start this, good job. Udarata trainline (main line) is one of the most scenic railway lines in the world that people can enjoy very economically. It should be preserved and advertised more. Best to introduce similar services for other lines like the south and north.
How about from Colombo? Maybe at least one cabin which has luxury facilities would be great. Colombo Badulla and to the south and north maybe? Can attract a lot of tourists....thus increase revenue.