Interior Doors - 5 panel w/mortise lockset
Help! Our 1922 house was left with all the original 5-panel doors. Great right? Well not when they all require mortise locksets. Our problem is in the door knobs - the mortise locksets do not work well - the knob turns on the spindle no matter what we do. At the Home Depot they only sell the variation on our doors...no other options. At specialty stores, replacement locksets would run me upwards of $100 per set, with no guarantee that it would work.
so my question is -- is it crazy (I'm new to home projects) to wonder if I could fill the holes in the doors with something, put regular/modern knobs in and salvage the door?
should I be on the hunt for salvaging/buying five panel slab doors to replace, which could be ~ same costs as locksets, but at least I would have a door with no major holes in it.
I've given up on fixing the locksets....4 handymen, and a few friends later we've given up! Advice greatly appreciated.