No. Moving a sizable working castle from Scotland to Chicago and having it’s mortar dry enough for it to be a secure facility in under six months would be impossible even with modern tech and magic. It is too much mass to move unless a god steps in and finger snaps the building from one place to another. Cash isn’t going to influence a god in that context.
Im sorry, are you arguing that /Magic/ is incapable of making mortar dry?
Im not saying anyone finger-snapped and made it teleport, though Im also not saying didnt do something close (aka NN Ways instead of sea-shipping) since doing it that much the Easy Way would likely be more Debt than Marcone would think it worth. But it absolutely, 100% does not take 6 months for mortar to dry in any universe. Certainly not in any universe with modern concrete technology, and especially not in one with both that and magic. Seriously, next month we are putting up a three story steel and concrete structure, plus all the processing equipment that goes inside it, during a 10-day scheduled mill shutdown and with maybe two months prior mobilization on the part of the contractor. Even Harry noted that they'd likely had the plan in place and ready to move as soon as he was out of the way, so really the only stage that
had to happen in the six month period is final assembly; there is a very real possibility that Marcone had the castle shipped, staged and ready in a wharehouse just outside of town. Hell,If give it even odds that he had planned to put it up somewhere else and just change the final location when a last-minute opportunity arose (Im assuming he gets something out of it being the former bastion residence of a paranoid wizard which was coincidentally fortified on the NN side by one of the most powerful fae around).