I am curious if it makes sense to migrate on the same server as our current SAV10 installation (also houses WSUS 3.0) or if it would be better to start from scratch with a new server?
The answer really relies on how powerful a server it is. If it was state-of-the-art back in the days when SAV 10 was released, then chances are that a modern laptop has more CPU, RAM and hard drive capacity. &: )
You may be best off in the long run by setting up the SEPM on a new server of decent, modern specifications. In five years time it should still be quite capable. But a server that would be ten or more years old, at that point......