moneymakers guncraft in omaha ne ,their specialty is raised adjustable ribs but will also do addon aluminum. keensights in california will do as well. i think both are around $300. i wud have a wood worker cut a 5/8 tall strip of wood with similar taper front to back. dble sided tape it on and try that first! wally riebesell
here is something i saw on another thread---- If you like the way your SKB shoots, I would contact Dave Berlet, New Knoxville, Ohio (419-753-2557 or [email protected])and have him custom make you an add-on rib out of delrin. Dave does great work and is very reasonable with his prices. He can change to POI for you. He can make the gun shoot exactly where you want it too.