Basement (re)finishing insulation question
This is what I did in my house near Butler, Pa. I installed 4X8 sheets of pink/blue styrofoam  panels directly onto the concrete block and taped the joints with 3" wide aluminum tape. Next I studded the walls with 2X4's using a bottom plate bolted to the concrete floor using 3/8"X3" Red Head anchors. (not the kind that you set with a hammer). I screwed the top plate to the joists with 3" dry wall screws.  I insulated the walls with R11 fiberglass insulation with the vapor barrier. Last, I drywalled over the studs. (hire someone to do the drywall). This has worked for me, but some people say I should have left a gap between the block and the finished wall. This is the 2nd time I have done this and it has done a good job for me. One thing I want to say is that My sump pump worked hard when it rained and I had a contractor check the pipes for the rain gutters and down spouts. The contractor that built did a bad job and used SDS pipe which smashed and the joints came apart, allowing that water to dump into the french drain and into the basements sump pump. That pipe was replaced as necessary with sch 35. Now the sump pump runs much less.  This is what I did and I am happy with it. Good luck and stay safe