I would like to find a way to access port 9700, but my proxy only allows port 8080 and 443. Is there a way to tunnel through port 443 to access port 9700?
If you are behind a proxy that is only allowing outgoing traffic on TCP port 8080 and 443, then the only way you can get traffic to other ports is to have something outside of the firewall listening on TCP port 443 or 8080 and willing to forward traffic for you to your desired destination host at port 9700.
If you have a home Internet connection with enough speed you might be able to run such software on your home computer. This would require:
Since this proxy has TCP port 443 open, you also might consider signing up for an SSL VPN service which will operate on port 443 and look like HTTPS SSL traffic. I've never used any third-party SSL VPN services so I don't know of any to mention off hand.