Taking down a site

Hello team
I built this site to be a Leads site for someone else, who doesn’t want it now.
So there’s no point in continuing to pay for Hosting and a I am going to take it down

But people being the way they are, very likely this chap will come back to me later and say “why dd you destroy the site, I want it back” even although he’s saying now that he doesn’t want it…

There are a bunch of backups.
Would you keep the most recent backup please, so that if he does change his mind we can re-install easily?

looking forward to hearing from you
Thanks in advance