I think something like this game hauling cart has been mentioned before.... but just in case ...there is some very interesting background on the Mormon hand carts from the 1850's, their construction (especiall the extremely tall wheel size so that the yoke was a straight pull) and problems

http://www.cabelas.com/catalog/largeImagePopup.jsp?productId=1206646&cImage=s7_420295_999_01