My favorite lgs has peg board type hanging rods that are adjustable in dado cuts in hardwood plywood. Beautiful and functional. Or if the dowell idea needs to be more adjustable, put the dowells in lengths of hardwood1x6 and screw the 1x to the wall. Mobile, solid, beautiful. And screw holes are small.
And I'm jealous, I will have a walk in some day. Got plans for an underground shooting tunnel 100 yds long, just have to find the right house/property.
You can't fix stupid....however ignorance can be cured through education!