Motor Driver for Windshield Wiper Motor - Pinout Question

I would like to use a windshield wiper motor like a servo as seen in these two videos.

I would like to not use an arduino unless I have to. Is my proposed solution viable?

Here is the closest motor driver I could find.

http://www.ebay.com/itm/Semiconductor-BTS7960-7970-Stepper-Motor-Driver-43A-H-Bridge-Drive-PWM-/222139279622?hash=item33b8886906:g:QbsAAOSw2xRYP5CW

servo motor red to RPMW
servo motor black to LPWM
5v to Vcc
0v to gnd
(Lastly - my concern)
5v to R_EN
5v to L_EN

Can I enable left and right at the same time since the pwm for both sides will never be on at the same time?

Or would this work?

servo motor red to RPMW
servo motor black to LPWM
5v to Vcc
0v to gnd
servo motor red to R_EN
servo motor black to L_EN

Thank you

In the search box in the upper right corner of this forum , type in "wiper motor servo". Lots of threads on how to do this.