Questions about determining the in-game currency value of pak128.Britain-ex

[1993matias]

Hello, 

We are a very small team trying to fork pak128.Sweden to mature it and include Danish vehicles too. Since pak128.Nordic never really reached a playable state, we almost have a blank slate. 
One of the many questions we still need to answer is the economy. Mainly how did pak128.Britain decide on the value of one simucent? Seeing as there is no inflation in Simutrans, the prices need to be normalized over time. The salary for a train driver (monetary value) in Simutrans would probably be more or less the same in 1900 as in 2000 unlike real life, where the monetary value has risen by orders of magnitude. 
So we need a reference point. What was the reference point in pak128.Britain? Did you base it on a monthly salary, ticket prices, or something else? 
How did pak128.Britain set the ticket price? Based on a fraction of a monthly salary? What about prices for goods transport and mail? 
Our idea is to convert all prices throught the eras to "fractions of a monthly salary" where the monthly salary is the minimum wage in Denmark of a factory worker (or similar). So a locomotive might cost 100x the monthly salary in 1995, which can then easily be normalized in the pakset. Is this what was done with costs in pak128.Britain, or is there some other kind of magic to it? 

We would be happy with any bit of help here, since we want to get this part right early on. It's a lot of work to lay the initial framework, but we hope it will pay off in the future!