Really? A Martin style 0 only cost the same as one hours wages for a working man/woman?
I don't believe that you have done the comparison properly. Still, if this is where your at then just buy a Makala Dolphin.
If you value a ukulele so lowly then there is no point in asking for advice here.
My budget for a well made ukulele with almost no binding and ornamentation is $250-500, and less from Asia.