Yeah right. options are always possible yet it's not simply a fork exchange it's also front fender change too. Otherwise, by 57 and the catalogs, that old fork and old front fender is Not a 57 and obsolete!
Additionally for all U or anybody knows, the original fender was trash and b/c they are so hard to replace, owner stuck in the easy-to-get fender and fork from older bike. Both, old style fender and springer fork plus, the repop are way, way! easier to get than an original 55-59