Your better off to replace it. I just quoted a rebuild on a 200EFI. 2200.00 to rebuild and 1100.00 to replace. Both are figured turn key and replacing is half the cost. Seen ads. on TFF for complete lowers, I use SEI`s. Good used lower will run about the same as replacing.
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” Remember what He has done and remember that He is not done yet! GOD IS GOOD