Look on eBay, lots of choices.
Truthfully, I suspect the incidence of the motors drawing 2 amps is pretty small. Also, the supply has overload protection, so it'll just fold back if you stall the motors. In order to get a can RS385 can motor to draw more than 1A on the bench, I have to get a pretty firm grip on the flywheel and really slow it down.
My personal opinion is this would be fine, it has a 3A peak output.
Output current range: up to 2.2A (the regulator chip can withstand a maximum current of 3A, can work at 3A output current for a short time.
From the TI datasheet...
- Thermal Shutdown and Current-Limit Protection