The part that sounds like it failed is the fan bearing bracket assembly. Pretty straight forward to change it out. Would you feel comfortable with a valve adjustment on a 617 engine? If you do then you should be able to change it out. You will, more than likely, get into replacing stuff $$ on the front of the engine that is not visually obvious as being worn out. The first thing that comes to mind is the belt tensioner assembly. The water pump replacement is more of a pia than hard in my opinion and then you still want to have the correct type of extension.

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Jim