We are going to Angel Fire New Mexico the week of Memorial Day and then thought we'd ride to Durango Colorado and stay a couple of days before going to Denver. We'd like to ride from Durango to Montrose and over to Salida on our way to Denver. My maps say it is about 375 miles. Do you think that's a doable day ride in the mountains. Kansas is a wee bit flatter so I didn't know how much time I should allow.