Double sided modular concept

Aside of my own private layout, I'm also involved with a local NMRA group located in the South West of the UK, in Plymouth. We call ourselves the Western Union. As a group, we've got a modular layout we set up once a month, and run our trains, where more and more the intention is to learn and operate like the prototype, with waybills, dispatchers etc. etc. To expand on this, we're now in the process of developing double sided modules, which will eventually give us a longer run, and more operational possibilities.

A concept drawing ( (c) Mike Ruby) of this can be seen here, the individual boards are still to be planned but I know that some are developing a set of boards based on Truckee on the SP Donner pass route. I myself am also contributing with a set of 3 boards (making one module) initially, one side just a single track main, the other side will have some operational interest with a small yard. It's going to be a challenge to fit track and scenery in each half's 7" (the boards are 18" wide with variable length to accommodate transportation and access) but it will be fun.