Thinking I might take a practical rifle course from Randy Cain with this rifle. What do you all think in terms of a scope?

I like good glass, have thought about a z6i 1.7-10x42, the z5 3.5-18x42 (but I really don't need that kind of mag), a NXS 2.5-10, and the stratos 1.7-8x42.

Wondering if I went with a #2 barrel and that bottom metal would that offset a bigger piece of glass on top to keep overall weight at 8lbs?