An electric bilge pump takes care of any water that gets in. I may T a manual bilge pump into the hose and use check valves.
Lake Dillon is known for big knockdown gusts.
ensignspars.com has just about anything an Ensign might need.
They offer a cover that is like a boom tent that is good for when the boat is in its slip. North Sails in La. can also make one.