Ahoj!
The just completed heavy duty 2'6" (762mm) line from Thessalonika on the Aegan to Valona on the Ionian Sea:
(http://i217.photobucket.com/albums/cc37/borys68/HabsburgMilitaryRailroad.jpg)
It's the thin blue line, folks!
It is modeled after the Rio Turbio line in Argentina, using 32kg rails (if this is too heavy for the period, I can backtrack down to 24kg rails).
Borys