[QUOTE=...we put in place a lease/buy deal on 5 x P8s (offsetting pretty much all capital costs until after 2020)... [/QUOTE]
I don't think the capital cost is the problem, there's an unallocated pot that would cover the upfront cost of 5 or 6 P8s with some left over. On the other hand a lease deal would squeeze further an already squeezed running costs budget. Not saying a buy/lease wont happen, it might, but contrary to what many believe the money to buy them upfront is there. For now...