Generator Head Torque Shaft Speed 50rpm, Torque 2300ft/lbs, Thru A Gearbox To Increase To 3600rpm. How Big A Generator Can I Use.?

Shaft speed 50rpm, torque 2300ft/lbs, thru a gearbox to increase to 3600rpm. How big a generator can I use.? - generator head torque

I min a power axis at 50 rpm, with 2300 ft / lbs torque, this shaft is a gearbox that the minutes of the last wave power rpm to 2300 rpm increases coupled.
I use this energy to power a generator head rotation.
My question is: What is the largest producer of the top (in W or KW) can be attached to the shaft end to function effectively 3600rpm generator head. Their expertise and technical advice is greatly appreciated. We thank Mike J.