You seem to forget that an entire large restaraunt had to be cleaned inside and out, restructured, and rethemed, the waterfront has to be removed and rebuilt, a new ride is going in which land has to be excavated, cleaned, dug out, and leveled, then the entire area is being re-painted plus gags plus a re-working of the entrance to both sides of the land.
The argument that TF and Simpsons are the same is invalid. This is more than just simple assembly parts and overnight work.
Like I said I have full faith but we'll have to see.