You've consistently stated that loco-hauled coaches and HSTs are *always* better than DMUs, and have been saying that the WHL should get specialist rolling stock or HSTs, both of which are unsuitable and too expensive. I'm not talking about the Brighton Belle either, I think you're taking me too literally. But it does seem that you want to offer something beyond a reasonable-standard modern DMU, and the market won't support that. I agree, the 153 idea is a good one, and probably a perfect stopgap until something more modern can be ordered, but it will have to be part of a larger fleet that will operate other routes such as Far North/Kyle, Borders, Stranraer etc. None of those can realistically support loco-hauled operation - the reason they all went over the DMU operation in the first place is the vastly superior economics. It's no exaggeration to say the 156s probably saved the West Highland and Far North lines from closure during the most penny-pinching years of the Thatcher/Major governments. The washout of the bridge that cut the Far North line off for ages would have been a perfect excuse to close it, but the introduction of 156s saved enough money to justify repairing it and keeping the line open.
But ultimately the money for investment has to come from taxpayers or from fares revenue, and unless the benefit:cost ratio is positive, you can't spend the cash. Yes, there's more to it than just pure profit/loss, and yes, there's a case for getting more people spending money into the area, and I totally understand that - but your suggestion of specialised rolling stock for one line that only requires about eighteen vehicles for only part of the year will cost an absolute bloody fortune, whatever option you go for, and that destroys the economics of it all. Whatever ends up getting deployed, it has to be based on a standard product that can be used elsewhere, which is what ALL of the WHL's rolling stock has been over the years.
I have no idea why you think CalMac are so wonderful - they're just about the most inefficient, over-staffed, hugely loss-making organisation anywhere, with colossal problems.
But you mentioned Type 3s, and the 37s are about the only Type 3s there are, so what other locos did you have in mind? It sounds like you're implying a rebuild project - who will design and finance a major re-engineering project on locos which are at least 52 years old? The risks involved in that are enormous. Are there any suitable locos around? I'm open to suggestions, but seriously, there aren't any.
Well, usage of the line is much higher than it was in loco-hauled days, and services are more frequent, to Oban anyway, so it's clearly not that much of a regression.
Dream on.