The majority of Curse of Alton manor was already in place as Duel. They modified some scenes yes, but the vast majority of the ride that you ride today was already in place since 1992, it is easy to take 7 months when you are only modifying scenes and updating them.
Pirate Adventure is mostly an empty shell inside, a very different beast, most scenes in the main ride, which is a huge, cavernous space, would need building from scratch.
There is more evidence to suggest absolutely nothing is happening in the ride right now, than there is to suggest work is happening, aka none.
Why would they work after the park has closed only? They didnt do that with Curse, contractors will work Monday to Friday normal hours mainly, that is how the world works.
Who says that the maintenance door should be shut if not in use? You? Why cant it be open, its been open for years, well its more ajar not open. But it has been like that for years, the ride is used for storage for alot of thing in the park.
The ride also needs major fire sprinkler equipment, there has not been a single contractors vehicle for general building, themeing or fire suppression seen. They are not going to hide the vans, they would be next to the maintenance door providing easy access for materials.
There is alot of hope from everyone wanting to see the ride re open. But logic, reason and general common sense seem to have totally gone out the window by people hoping something is happening, not to mention the serious mental gymnastics too.