May want to give our
TURION scope a look. 3-9x40 with a T-Plex. You mentioned upgrading glass and coatings, and this scope gives you the best you can have for about $400. Schott HT glass and fully multicoated lenses. Add on 4" of constant eye relief through the magnification range and our turret reset to zero. Can also have a custom turret made for this scope if you choose. Great way to get some nice upgrades at a lower cost.
https://www.tractoptics.com/products/riflescopes/turion-3-9x40-t-plex
