Staff: Given the length of the journey, and ECS either end it would need two drivers for each train each way. Same for the guards. 4 of each, every night. Standard cover ratio is 2. So 8 of each. On board customer service crew - given the train formation proposed, 2 for each service, lodging every other night. Cover ratio may not be 2, but not far off. Another 8. All on permanent nights. Cleaners / bed making / linen washing etc at either end. Easily another 4 people. A couple of supervisors and/or a manager to run it each night. That’s 30 people already, and assumes that all the operational tasks are covered by these guys - shunting, cleaning, stocking up, welcoming, station duties etc. Also salary is only around 60-70% of staff cost; you have to add employers NI, pension, and other benefits. That’s at least £1.5m on staff costs, almost certainly more.
Rolling stock. Let’s assume someone gets the coaches for free (They won’t). They will need maintenance (where?), and daily tanking / emptying. Given the fleet size, a self contained maintenance operation wouldn’t be sensible, so you need to hire in. Easily £0.4m, to include parts and consumables.
Haulage. Will need to hire & maintain locos, or buy at least 3. Either way you won’t get much change out of £300kpa per loco including maintenance, but let’s be optimistic and say £0.8m for the 3.
Fuel. This sort of train will be lucky to do 1mpg (rather less than the helicopter, incidentally). Central belt to Wick via Aberdeen will use over £1000 worth each way (at the costs rail companies pay for diesel). £0.6m.
Track access costs. There would be a fixed charge per train, plus a variable charge per vehicle mile. Given the type of train I’d expect the former to be in the range of £1000-£1500per train, and the latter to be about £2/mile. Let’s go low, and call it £1500 / train total. Another £1m.
That’s £4.3m on optimistic assumptions, one of which is the the rolling stock is free.
Oh, but then there’s lots of other costs in running a rail service. How do you buy a ticket? Who decides on pricing? Marketing? Who staffs control and on call? Who does a customer call if there’s a problem? Safety management systems? Contract management? Insurance? Finance? HR? Who runs the whole thing? Of course this could all be subsumed within CS or Scotrail if they got the contract. If it’s wasn’t Scotrail, there would have to be arrangements made and paid for to access the stations. They would know that and price accordingly. All of this is another half million or so for this size of operation. And finally, why would any operator want to do this if there wasn’t a little profit at the end? Let’s say a very modest 4%.
That now adds up to a round £5m.