Based on what you have told us, for your setup (2nd gen, 275 series NT01 tires) I would not say you will be outhandling C6 Vettes with Hoosiers unless there is more to the story. Some of those guys are having problems with sustained high-G corners but not all of them.
I am a big fan and advocate of dry sump, but it is expensive and would not do it unless I deemed it absolutely necessary.
I think you would be fine with the accusump.
Until it blows up (hey, Ron said it first).
