Consider the following very approximate figures: At flight idle in a 206B it takes about 30 shp to turn the rotor at 100%Nr. Reducing that by 10 shp for friction in the transmission and power being absorbed by the T/R drive etc. still leaves a power requirement far in excess of 1,2 or even 3 humans on steroids could produce. Yes you are light but 206 or even B47 blades are too heavy and will have much more drag then you could cope with. Have you thought of building very light weight high lift fabric blades (think glider wings as a design guide). For human powered anything weight is critical.