haha, yeah... I saw Trijicon's newest high power optical offering for long range rifles. I drooled until I saw the pricetag. just a hair over 4500$

What could I possibly mount that on that I could afford to shoot?

You piqued my curiosity about the upgraded turret knobs. I knew I had seen something else before. Turns out Stoney Point USED to make an upgrade knob that kinda fit the bill, but it's been discontinued. It looks like the kenton industries offering is the only option for upgrading knobs on that model Accupoint.

The 5-20x comes with target knobs though, but that's probably a lot more glass than you need for your purposes?