That is a good idea. Plus I prefer seeing things like leather goods in person. I have found that the gunshows, like ones in Montana (I don't know which part of Canada you are in) have some excellent belts made for cartridges. Some of the cowboy stuff I have seen was also superb quality and they make them for the 45-70 which I would guess might be large enough for a 470.

How many catridges do you want to carry on your 470 "ammo belt" and, is this a belt you'd wear on your waist?