It appears this carburetor is the all plastic modular carburetor? Should be able to find a float for this, check to see that's the correct part # you are searching for.
What I did, was ditch the plastic carburetor altogether for an older style, metal body carb. The reed plate and air cleaner needs to be changed along with the carb but the whole shootin' match will then bolt right up. The plastic carbs are not always thought of very highly by repairmen. Might think about that strategy if you have to. But, I was able to find a float when I was messing around with the plastic style carbs.