Looking for a good fathers day deal on tires

I have been doing some searching and would really like to get my dad some decent tires for his 2000 Polaris sportsman 500 for fathers day. I don’t want to spend a ton. Budget is around $300-350. I am thinking I may have to buy fronts for fathers day and rears for Christmas based on what I have been finding.

I was hoping to find decent used ones or take offs but no luck.

What would be good for mostly rocky trails and some mud? Not a lot sand or heavy mud driving.

25X8 -12 FRT
25X11-10 RR