[IA] Modem purchase

Hi, Last week my Arris 6141 crapped the bed which resulted in a tech visit. They gave me a SMC D3CM1604V to use for now, but obviously I want to use my own modem and such. I subscribe to Internet-100. I'm looking at the Moto MB7420, will this work for me? Also considering the Arris 6183 or 6190. I'd be willing to consider other possibilities if you have any suggestions, as well. Thanks!