I don't have it at hand but I sort of remember a different value (or £23,000) in the first book I had (or a later one) but I managed to find out from an ex-manager the actual cost (although he meant the Clermont one as he also said that there wasn't a Playboy one). I believe that Tom amended the amount due to the new information. I'll have another look through my emails as hopefully it will be in there somewhere.
As to almost everything else you mention, look above.