The tank being cleaned and you may want to invest in a liner like Kreeme or something isn't too bad. The carb rebuild however is going to hurt. Getting the carbs off and on on a V4 isn't fun. The actual rebuilding of the carbs isn't too bad but though. Watch the little plastic tubes that carry fuel to each carb, if you break one they are expensive for a little chunk of plastic. Pick up a service manual and that will help you out a bunch.