Hi Jburns6,
Welcome to the Heartland Owners Forum.
If you can find another trailer at the dealership that has sink covers - maybe a Cyclone or Road Warrior, and the sink on yours is the same shape and size, with the same counters, Heartland can probably make covers for you. You'd need the VIN # of the trailer that has covers. Heartland could make you a set of covers that would fit the other trailer, and thereby fit yours.
You may find the price is pretty reasonable too.