Looks like a fairly standard closeboard panel, although the amount of supports varies depending on manufacturer.
Out of stock there, but does give you a part number you can google to get the below, which shows delivery in a few days...
Almost all estate agent listings will cover themselves with something like...
"These particulars and any pictures or plans represent the opinion of the author, excluding vendor comments, and are given in good faith for guidance only and must not be construed as statement of fact."
The only real black out blinds I've found are the BlocOut by Bloc blinds. Certainly not a cheap option though. Think it cost us just under £200 per window, and that was a few years ago.
Techmar garden lights are good, 12v wired rather than solar but incredibly easy to put together. Can be added to sensors/wireless switching etc.
I'm 50/50 on it at the moment, will probably change it. Also comes with bracelet but I already have three other watches so trying to move away from them. Tempted by a light honey leather strap, just unsure it'll work.