That is a good looking point. Looks right as rain. I think the clean up really helped.
You might also look at a Kings corner notch point, as you get towards the Ozarks part of Missouri those become a lot more common than Lost Lake points.
I don't know that Kirks made it across the Mississippi much, but maybe. The type I'd look at is King, or maybe something else in that cluster like Apple Creek. The dart points tend to be a bit smaller, but some knives can be bigger.
https://www.projectilepoints.net/Points/Kings.html
https://www.projectilepoints.net/Points/Apple_Creek.html
it's worth what some one is willing to pay for it.
this changes constantly.
no one can accurately predict.
displaying facts is great.