NAT instance - port/IP forwarding

Hi guys, I have a question regarding to NAT instance.

Here is what I am trying to do:

I have a VPN tunnel setup between my home environment and AWS. I want to use NAT gateway to route traffic depending on IP address and port number.

In example: If traffic from my site to AWS comes to address 1.1.1.1 (public) on port 22 it should go to NAT instance and NAT instance should send it to 192.168.1.1 (private address).

If traffic from my site to AWS comes to address 1.1.1.1 (public) on port 23 it should go to NAT instance and NAT instance should send it to 192.168.1.2 (private address).

If traffic from my site to AWS comes to address 1.1.1.2 (public) on port 22 it should go to NAT instance and NAT instance should send it to 192.168.1.4 (private address).

Is this doable with a NAT instance? I do know that ports forwarding definitely is, how about IP?