motor controller 250W (24V)

Hello!

I want control two DC motors with 250W (24V), something like this (http://www.instructables.com/id/Easy-build-self-balancing-skateboardrobotsegway-/).

I see that this is a great motor control: Sabertooth Dual 25A 6V-24V (https://www.dimensionengineering.com/products/sabertooth2x25).

My question is: Somebody know other motor controller to control one or two motors with 250W each? (Sabertooth is too expensive)

Any sugestions?

Thanks!