It is, of course, hideous, but has some practical appeal in terms of cost and weather resistance. I floated the idea in the $10k double thread a while back and I don't think anyone commented on my blasphemy at the time.
I agree with those saying that the metal should be blackened in some way, probably a coating, at least on the barrels, since nitride and solder would not get along. The action and small parts could probably be nitrided.
If one can get past the looks, a synthetic stock would reduce the cost of a double by a fair bit. Make mine fiberglass though, not injection molded tupperware. Real engraving would also be out for cost control, but some simple laser engraving would add minimal cost and increase the curb appeal, at least to me. The handwork involved in regulation would still make it an expensive firearm, but maybe palatable for some that otherwise would never purchase a double.
While I'm certainly no PH, I could see this appealing to some of them if the cost was reasonable enough. While not attractive it would certainly very utilitarian for their uses.