I'm not looking to spend a ton. I'll shoot everything inside of 75 yards. I'll zero it around 35-40 yards. I'm strongly considering the Hawke Vantage 4-12x15 AO, Mil-D\ot 1/4MOA, 1" Tube. With 100MOA adjustment, I should be fine without adjustable rings and will have enough holdover for +- 30 yards according to several ballistics calculators. I assume this scope is fairly decent given the reviews. Given the size of the objective, what ring height will I need for the dreamline bullpup?