yes you can forward two port, 5000 and 80 to 3389 and port 80 respectively; but port 80 can be forwarded only for 192.168.1.1. If you wish to forward port to more than one machine, then you would need to configure different port for the webserver as well.
You would need two services, one for each port, because we need internal port redirection.
So assuming that you have 5000 and 80 port 192.168.1.1; and 5001 for .2 and 5003 for .3; then the services needed would be:
service-1 for port 5000; getting redirected to 192.168.168.1.1 on port 3389
service-2 for port 80; getting redirected to 192.168.168.1.1 on port 80
service-3 for port 5001; getting redirected to 192.168.168.1.2 on port 3389
service-4 for port 5002; getting redirected to 192.168.168.1.3 on port 3389
Thank you.