John Siemsen asks: "Requesting help with some specifics on components for a circa 1960-61 Olmo...."
a bit later, but here's my 1963 Olmo. There should be some parts cross-over since my bike and yours are relatively close in years. My '63 Olmo has all original parts, but was missing toe clips and toe straps, so can't advise you on those two facets.
La Jolla California USA