Photos I've seen show US WW2 pattern webbing. I'd suggest scarves would be a parade affectation rather than standard kit. Of course the thing that would stand out would be they would be considerably shorter than the average US infantryman.
If you are commissioning a range then keeping them in basic OG 107, combat boots and WW2 small arms and on the small side would give you good crossover potential. ARVN, Indonesians, Koreans, any number of Latin American Armies, etc, etc.