Logged In: YES 
user_id=752496

I thought about it. The problem with this approach is that
it also copies the permissions, but not the owner/group ids
(you get the defaults there).

So, I think is better to leave the user defaults than mix
the old permissions with new owner/group (which may lead to
a security risk in some combinations).

There's a better approach: to copy *all* the file metadata.
But don't know how to do it in a portable way...