That would be easy to do with an iptables DNAT rule. You can take a large set of ports and forward them to this daemon.

    iptables -t nat -I PREROUTING -m tcp -p tcp --dport 1:79 -j DNAT --to-destination x.x.x.x:2222

    iptables -t nat -I PREROUTING -m tcp -p tcp --dport 81:442 -j DNAT --to-destination x.x.x.x:2222

...etc

Just remember to open those same ports in the INPUT rules. If you get DDoS, then also create NOTRACK target rules in the raw table to avoid hitting the conntrack table.