A used Burris XTRIII illuminated 3-18 would work nicely. Don’t be concerned about scope weight on a heavy rifle.

Whatever you get, get something with a MIL or MOA reticle and learn how to use it. It’s no harder than using a BDC reticle or CDS system and you can use it with multiple types of ammo/velocities.

CDS systems and BDC type reticles generally suck. They sound good in theory but are only accurate for one particular bullet at one velocity.

Could probably get this one for $650- https://rokslide.com/forums/threads/burris-xtr-iii-3-3-18x50-illuminated-moa.390571/#post-4012994