A couple of points I don't think have been considered on this thread, if you are digging down so the pitch is lower than the level of the Ship Canal, how will it drain?
Second point, I fully expect offices to be placed under the stands, some will be club office's, but others will be on a five, ten or twenty year lease, meaning year round footfall making use of the public transport network and more importantly, providing a regular "customer base" for the concessions in the "fanzones" if done correctly, it can have an area for families and kid friendly on matchday and for office staff Monday to Friday, with a larger area for Sean, Seamus, paddy and Eugene on their annual trip from Belfast or Dublin, while Wee Jimmy and Mental Davy from Salford will still go to Bishops or The Tavern
.
I don't think the regular season ticket prices, or SOME of the general admission tickets will increase much, as they will now that they need the working class locals to create the atmosphere the gin and tonic and the prosecco types paying a fortune in the corporate lounges want as part of the "matchday experience".
They will be expecting an extra 5,000+ corporate tickets to pay a significant amount of the build costs, and much more spend in the ground or club run concession stands (a variety of bars and fast food) and fans to get to the ground at 12:30 or one for a three o clock kick off rather than staying in Yates or the Lass o gowry etc