Price isn’t really the issue, just how long it will take to get the money to set it up. I’d rather spend the money once the right waycongrats on the scar and welcome to the scar family.
what optics to recommend depends on the primary use of the rifle.
personally, i would stick with a red dot or rmr is i was serious about using it inside for home defense, and get a silencer.
if you think the rifle is going to get much more outdoor use, an lvpo makes more sense to me.
the first question is how much do you want to spend? and what is the farthest you might want to shoot with confidence?