BBD's are very easy to work on. A gallon of carb dip, some spray carb cleaner, and a rebuilt kit (and maybe a float) would take care of it.

Or, just hit up your choice of parts stores and they will probably have a re-manufactured one in the system.

If it is an original carb and you go the re-manufactured route, then keep your original and just pay the core charge. You might want it later down the road.