Nice build. 6ARC, I'm guessing?
Are you leaning toward more of a hunting platform, competition, or just range fun?
I'd second saving up and trying to reach the $1000-$2000 range for optics. NX8, Leupold Mk5HD, Steiner T6Xi, Ziess S3 are all favorites on here. Though, the Mk5HD doesn't have illumination standard, just fyi.
If you go NX8, I know a few folks prefer the 4-32 over the 2.5-20 model for better eye relief, DOF, and glass quality. If you search,
@mrtoyz, he has a few good write-ups on it.
Or if you're set on staying sub-$1000, the Burris XTRIIIi 3-18 is probably your best bet. Look at Expert Voice and see if you can qualify for an account. They're a pretty good deal on there.