Hi all. I've taken a pretty significant nick out of the bottom blade hitting a rock the other day. Resulting mow is now leaving a deeper cut on one side. Probable reel damage but I'm yet to take a look. Can the bottom blade be replaced and if so approx cost? If I need to replace the reel does the 45 17 inch fit the 430 diplomat. If the reel is bent can it be reshaped?

Thanks,

Pete