There is a video of Bidston Court getting dismantled before being moved to Royden Park and being renamed to Hillbark.
The video is on www.itnsource.com
, just put Bidston Court in the search.
It is also linked through on Blinkx but seems to come up in lower quality.
I haven't found a way of linking to itnsource pages and note that they are flogging the video at £299 a copy!!!