Okay let me reraphse, cheaper and with a highly likelyhood of big returns than a major new coaster. They could almost certainly get the permission if they already got permission once, I reckon it'll be on the top of the Mellors list. They already have the expertese and relationships with all the relevent companies, and will only be increasing their scale for better prices.Planning permission required...which the park had, then let drop, about a decade ago.
Lodges (not cheap) and tents also need services putting in, water, toilets, electric hook ups etc are not cheap on a large scale.
As for toilets and electric for tents, you could probably get some relatively cheap modular buildings to serve the purpose without too much hassle.
