Regarding your question on renaming the interfaces, Yes it is possible and also it is possible to specify how many adapters you have in your system.
Linux will self-ajust in most cases to the new hardware and the network interfaces will be "disabled" if they are not found. The problem remains with the rest of the scripts that will expect to have those interfaces.
Maybe a more experienced Linux admin could answer this.
From past experience i can tell you that i have moved the image of a linux machine to another machine and after correcting the new mac addresses it worked like a charm (the second machine had a 2 NIC setup also)
So, in short, it you can move the so from a machine to another with little intervention. if there are more experienced users they could advice you better.
Best regards
Bogdan