John and Maxey-
My sincere apologies! By Maxey's mention of Mossberg, like a fool I sometimes (and more often than I care to admit) am, I assumed he was speaking of the typical Mossberg slide action shotgun one might buy at a local discount store (with a well deserved reputation for rugged reliability, but equally well deserved reputation for being devoid of glamour).
Thank you for the clarification and I do apologize for making the wrong assumption. No doubt such a custom shotgun as you describe as presently under construction would be a fine and unique item, giving any owner great satisfaction. Best of luck in your venture and I would very much like to see the end product.
Doug