Not sure how much you would save, this post is a few years old but at the time the Canadian list price was double the US list price. It has all the part numbers for the pump, fuel line, spacer and so on.
Last thing to add is that the pump Eric sells is actually different then the one you can buy from cummins, it's a 94-98 high volume pump that has a different spring installed. These pumps it has a larger piston that can supply more fuel. He also sells the spring separate so buying one and getting a 94-98 pump from cummins in Canada may be cheaper
http://www.dieseltruckresource.com/forums/1st-gen-ram-all-topics-93/dang-piston-lift-pump-84412/