How can I run connect to OpenVPN via stunnel on port 443 while also keeping the helper webpage up and running?

[SokolskyNikita]

In order to make it as difficult as possible for hostile network to detect VPN activity, I need to connect to OpenVPN via stunnel on port 443. This is possible to do via sslh configuration, however this makes the helper webpage inaccessible as its also serving HTTPS traffic on port 443. I've tried changing firewall and Apache settings to run the helper page on a different port instead, but for some reason the port stays closed no matter what I've tried.

Is it possible for me to somehow open an extra port for the Apache helper page, so that I could run it on, say, port 442.