That would be why my reply to things like this always starts out with "If what we have seen is the whole story....."

When you buy scrap for scrap price, you deserve to get good, functional scrap.  I'm guessing that the cultivator is perfectly functional as scrap.   If you want to make something more out of scrap, then you might ought to have a clue what you are doing, and some suitable tools to do it with.