How do I go about installing a subpanel on wood paneling that's mounted to a concrete wall?
Putting the plywood up makes a great base for a panel , I usually only use 1 anchor in each corner about 1" in from the edge. You can screw directly into the stud or furing strip since you plan on spanning 2 studs you don't have to go into the concrete wall. Then use screws to anchor the panel, your plan sounds good to me.