Welcome to the forum jrz dad! You're about to ruin the gun, but it isn't much to begin with so if a coach gun is what you want go for it. 1st off, you'll be removing all the choke as well as any re-sale value. Then, old doubles aren't the best home defense weapon IMHO. Only the 'cowboy action shooters' (which is probably a passing fad) will have any interest in the gun after you cut it down. If the old gun has any family history why not take it to a gunsmith and have it cleaned and vetted for safety. Then put it away for another generation who might have some interest in great grandpa's old shooting iron...Geo