Is your motor like a pancake, with a long shaft with a fan blade on the end? No wonder the stupid thing doesn't work for long. Looks like a great design to test your bearing quality.
I see my temp probe listed separately. So far the lowest I have found it for is $53. Looks like it is going to be a fun job too given the space I have to work in. I'm guessing it is a 3 pint, 20 swear word job so far, with a possible tool/part throw or two finally culminating into a 3 pound hammer blow to the old part.