Bending is the cheapest way to go - not adding wood. Rest the gun on a table with everything from the trigger guard back off the table. Put two 25# shot bags on the barrels, two heat lamps next to the wrist with a sock dipped in cooking oil tied on. Measure to the floor. Add one [ sometimes two ] shot bags on the butt. The stock will bend, if it's going to, without forcing it. I've never cracked one using this method. If possible set up a stop so the stock will only bend so far. It's something anyone with any common sense can do.