Well, I did ride the Jarifa and it was a medium size. It was too cramped for me (6'-0") with 33" inseam.
From that experience, I can say small would fit you but it's better if you ride in person and get a feel.
Hey Ron! Good to hear from you. Things have been a bit crazy with the move. Both bikes I would prefer a small due to the standover height being rather tall. Give me a shout when you're free and we'll talk more.