In spite of never having shot one myself, I'm getting more into coyote hunting than I ever have in recent months. Saving for a dedicated coyote rig right now in fact. My shots are most likely to be within 300 yards, and I don't have the budget you do...BUT, I do have a few ideas. I've been using a Sightron SIII with a variable-power (20x top end) and their MOA-2 reticle. I love this scope for spring/summer/good light groundhog hunting...but have quickly learned it's not a great choice for coyote. Too heavy, large, more magnification that I realistically need and WAY too fine a reticle. It almost disappears in low light=not ideal. I'll likely be buying something in the 3-12X power range, side focus, matte finish. Considering Redfield, but no decisions made. I like Sightron, but since no retailers anywhere near me carry those, I want to pick something I can look through first. It's a departure from the normal types of scopes I look for...so not as eager to take a chance. I may even consider an illuminated reticle.
The Sightrons aren't an issue, I own 2 (SI and SIII) and both have been excellent.