I've said this before in more than one platform, but you will not be sad to own a Tikka. I've had several and they're all shooters, all very reliable and lightweight.
I've personally never shot an elk with a .270, but people do it every fall.
As to your scope, I've seen people bashing Vortex these days. I have never had anything but good experiences both with the company or their products. That said, my personal opinion is the one you're leaning towards sounds like a little much for what you intend in the field. I'm probably a bit of an outlier with this regard, but I personally like to keep things simple and lightweight. I don't care for turrets and things needing to be adjusted as an elk walks into view, just use the MPBR method and go.