Upshot - I see the future and we will have 3 seasons in the championship to get back to the prem - with a budget each season of £15-20 mill. Sums below if you want to be bored.
Looking at the most recent accounts compared to the year before, we're not making a loss anymore, and if we kept spending at the same levels going forwards and stayed in the prem we'd be making a profit from any TV money. So estimated £30 mill assets for next season, then season after we spend what we earn going forwards. If in the championship still then the parachute payment is actually estimated to be about £36 mill for 2016/17. All in all, that is plenty of money to see us back to the prem. Just need the right set up to spend said money.