Aye, sorry to hear of your problems - I did similar last week and fortunately it all went swimmingly. Did you get a chance to have a look in the museum on Kyle station? It was a bit small but there was certainly a lot of info to be read and well worth the £1 admission. I will agree with you on the Kyle line too - lovely contrast from the lochs around Garve to the emptiness around Achanalt to the final, mesmerising run from Stromeferry into Kyle. Easily in the top 5 most scenic lines in Britain. The Highland Main Line from Stirling to Inverness is also very pretty too.