Biggus
To your costs you can add the hotel bill for the flight crew. As "99" will no doubt be aware, the huts are simply incompatible with crew rest (despite being used for weeks at a time by visiting dets). Let's conservatively assume 6 rooms downtown at £100pn, there's another £1200.... then they get some subsistence allowance..... 10 pers at £30pn, another £600ish. Presumably there are some costs being incurred in the UK by pax who were supposed to have been moved on the frame's next movement as well. Damn, that wheel is looking cheap!