meh, get a UK host (..... wait up, thats me!
)
seriously, I don't think there are any freesite (i.e. just using sponsor content) webmasters who have any records.
All of them seem to just provide a mailing address of the custodian, and say that they(the webmaster) can be contacted if needed.
I havn't read many statements saying "I have on site records complying with 2257"
Obviously im not saying that makes it right for you to do the same, im saying either everyone else is wrong, or it's ok to do it like that. I don't expect sponsors to start mailing out copies of the 2257 docs for every piece of contet on their site to every webmaster!