How are you going to use it? Most IP stacks take a fair amount of memory, not to mention the Ethernet driver. I guess AmiTCP wouldn't have much of a footprint, but what about the apps? Forget any gui programs, browsers, ftp clients, etc.
I always wondered how to get a 2M A600 online via Ethernet but thought it would take an OS so stripped that it would become useless.
Edit: Duh. Didn't see your first post, only the second.
Let us know how it goes. BTW, I woudlnt' use Miami. Miami requires MUI which will add to memory use. Use good old AmiTCP.
