For the website stuff. Not knowing who you are using, I cant really answer the first bit, but just in case, wont take a few minutes to write your own, the bare minimum most companies/hosting places will insist on is a warning that your site contains adult content, that could be something as simple as "if you press continue you will see nekkid pics" or you could go the whole hog about reminding them they have to be over eighteen, blah blah..
Anything beyond that especialy things like the time and companionship disclaimer, are a waste of words in the UK, but ladies choose to add them all the same.
Hope that helps?
As for the rest, Im sure those with more knowledge of London will be along shortly.