Hi,  I'm wondering if the Monoprice 60 Watt Charger Product # 24425 can be used for charging the Ronin S. Also trying to find a USB cable that's double the length of the one it's shipped with. Could you please advise?

Any USB-C cable can charge the Ronin S.
For the charger, the 60W is for laptops, the Ronin-S charger is only 24W (12V/2A). Any standard phone charger can charge it.