Sharepoint Site Redirections using HTTPClass or iRules

Just my humble opinion, but managing that list of hosts/URIs and associated redirects is by far most easily done with a data group and a very simple iRule. Example:

when HTTP_REQUEST {
    if { [class match [string tolower [HTTP::host][HTTP::uri]] starts_with my_sp_datagroup] } {
        HTTP::redirect "https://[class match -value [string tolower [HTTP::host][HTTP::uri]] starts_with my_sp_datagroup]"
    }
}