Electric motor with gearbox

Hello
I need Motor Low Speed Rotation speed of 100 rpm
Please inquire about the of motor
1. Model Motor (Reduce speed) Constant speed, what is the price of this model (7.5 kW and 10 kW)? Rotation speed of 100 rpm
2. Model Motor (Speed reduction) controls the rotational speed? (7.5 kW and 10 kW) and What is the price of this model
I want to know if the price for each model was 7.5 kW and 10 kW? Also Rotation speed of 100 rpm
With thanks and appreciation