Wylde chamber is about all I run except for my 90 grain barrels. Best of all worlds IMHO.
Float rail doesn't make anything more accurate that most can tell. But if you are going to put a bipod, or sling tension on the gun, it'll sure help it maintain zero.
TWR, I'm guessing, but have not priced barrels, that you are quoting ready to go at 450, I was still seeing blanks around 300 last I looked a while ago.
But 150 is about standard to set em up then.
What is a noveske running? I could google but I'm lazy and have a feeling you know.
I'm thinking when I read, they are made well and have a really good shot at being a pretty dang good tube.