Unless a part is damages or worn down, I don't see why a rebuild kit is necessary. Clean, clean, clean.
Sometimes the float needle can get worn, sometimes people damage the idle mixture screw, and sometime the throttle shaft holes get egg shaped, but the repair bushings aren't part of the rebuild kit anyway. Jets don't wear out. Don't do damage them removing then and they'll be fine forever. As for the float gasket, gasket paper, scissors, an Exacto and a hole punch.
...and even if you get a rebuild kit, the key is the cleaning anyway and a carb kit doesn't help with that.