From a personal point of view, I wouldn't want to accidentally mess up someone else's scanner causing me to have to replace it for them. If i tried to do mine and made some kind of 'oops', then I have no one to blame but myself.
I have successfully done my Pro 95 scanner, but it was an old scanner and if I messed up I didn't lose anything as I didn't hardly ever use it.
I can barely afford to buy myself a scanner much less have to purchase one for another person.
That's why I won't do it for friends, even though they have told me they wouldn't be mad if something did happen. That doesn't matter, I would have felt a responsibility to replace it as I was the one that damaged it.
I hope you can soon find someone to help you.