As it is listed, if there was a "mysterious fire", the ride would have to be rebuilt...using traditional methods.
There are big penalties for arson, even where you own the land and structures on it...and further big financial penalties for deliberate damage to a listed structure.
Rough as it is, it ain't going nowhere soon.
Dippy is the seat expert here, you can get a reasonably decent ride if you sit in the front half on a non wheel seat.
You shouldn't have to admittedly,but it does make a big difference.