Hi Gary,
I'm afraid you may have a mistaken impression as to what iFixit is all about. The thing is, they do not do repairs; rather they're a resource for people who want information so they can repair their own devices. So the answer to your first question is no, they cannot fix your camera. With regard to iFixit, the only answer we can give you about cost is that if you repair it yourself, the only cost is whatever you pay for the parts you need - which you have to locate and purchase yourself.
Although they do carry parts for some devices, your Canon isn't one of them. If they did, there would be a subsection on the device page labelled "Parts" listing what they have for sale, and there isn't one on the device page for your camera. There are times when someone like @zephosk can suggest a source for parts when that's all you need.
If you were looking for help and advice on repairing your camera yourself, then you've come to the right place, but if you are looking for a repair shop to fix it for you, you would be better off calling local camera stores and asking for recommendations. iFixit prefers we don't offer recommendations for repair companies, as those can be very subjective.
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