Redirect port 443 to another SSL configured port on IIS 10

Question

Fist and foremost, due to limitations imposed by our service provider I can only use 1 IP address for both 80 and 443, so multiple IP address configuration is simply not an option. So, I have a server 2022 with IIS 10. I would like to redirect a website: https://www.gmcomputers.co.za to https://www.gmcomputers.co.za:4443 without having to stipulate the :4443 part. I found a possible URLRewrite rule that looks like it should work, however it does not currently. I keep getting "the webpage took too long to respond. the rule is as follows (with my modifications inserted):

 <rewrite>
            <rules>
                <rule name="Redirect HTTPS Port" stopProcessing="true">
                    <match url="www.gmcomputers.co.za" />
                     <conditions trackAllCaptures="true">
                        <add input="{URL}" pattern="www.gmcomputers.co.za" />
                        <add input="{SERVER_PORT}" pattern="443" />
                    </conditions>
                    <action type="Redirect" url="https://www.gmcomputers.co.za:4443" />
                </rule>
            </rules>
        </rewrite>

Obviously, if I type the full URL https://www.gmcomputers.co.za:4443 it works perfectly. Could someone please advise where I am going wrong with my code? Thanking you.