There are 6 Starduster Too SA300 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1969 and 1974.
N6213
1974 Starduster Too SA300
Pima, AZ
N7036
1973 Starduster Too SA300
Vancouver, WA
N1011Z
1972 Starduster Too SA300
Estes Park, CO
N416RB
1972 Starduster Too SA300
Grass Valley, CA
N511SG
1971 Starduster Too SA300
Little Rock, AR
N111CG
1969 Starduster Too SA300
Rogersville, MO