@smerf
You seem to know all the details of your systems' CPUs, but strangely nothing about their network chipsets. If you could tell us what they are, we could tell you what drivers you need to use. It's unlikely that none of them have a supported NIC.
Also, you suggest that AROS should support all modern components as if it was just a matter of adding a line to a config file for each. Linux needs hundreds of programmers to achieve the level of driver support it has. You might be surprised to hear that we don't have that many driver programmers.