As far as filling in the wording, remove the action from the stock and make sure the area to be marked is degreased. Heat the areas to be filled with a blow dryer or heat gun until they are noticeable warm to the touch. Then use a ceramic crayon (or heck, a white or orange crayon) and then rub it over the lettering, letting the wax fill the space. Wipe off any excess and you're done.