Some cretin kicked out a door at my Backpackers Hostel. The result is a missing striker plate and a messy hole in the door jamb where it once resided. It appears to have been patched up over the years and I have chiselled out a neat space about 60 x 25 x 25. Now how do I fill it so I can affix new striker plate? Fashion a piece of wood to fit and glue it in? Putty it up? Any tips gratefully received.