Hi, if grain came to Oban by rail it would have to be transferred to truck for the short journey to the distillery. I can't recall seeing grain wagons but don't take that as gospel. At Loch Awe station there was a coach at the Oban end of the station on the loch side in 1989. I assume it was a camping coach. One oddity at this time was the station signs were the normal Scotrail blue/black,. but the sign down to the station, Scotrail and the double arrows were in red. Good luck with the project.