Serious question, anyone know the ballpark figures of thrust-to-weight based on 1000 ft/min ascent rate for fully loaded and ground level?

I'm trying to calculate maximum theoretical fuel capacity, essentially 1:1 thrust-to-weight, given it burns kerosene - 6.82 lbs/gallon at STP.

10 gallons of kerosene = 68.2 lbs is much less than the weight variation of a standard adult human, which falls roughly in the range 100 lbs - 200 lbs, so doubling the fuel capacity should be easy.

I suppose engine upgrades would also be easy. They did mention the JB-10 was in the works...

[Edit: thanks Retric, 68.2 lbs not 16 lbs]