I think I need a fan motor replaced in my oven

Do you know who I should call for this? I figure if I call my oven's manufacturer I would likely get someone who will charge more to replace this. All that I read about this - the sound the motor is making and stuff all points to a motor needing replacement.

I looked at a Utube video and it doesn't look too hard so I figure there has got to be someone out there that would do it cheaper and still do a reliable job. I am afraid of messing it up so I would prefer to hire someone more handy. Any thoughts?