That's a question for your customer, I'd say.
I'm sure you'd be able to do the work but it's always a question on wheather or not your customer thinks it's worth it.
My opinion, however, is once you get down to the motherboard component level you can't garrenty that it will last longer than it lasts. One week or one year, that repair will lasts as long as it lasts. Your customer must understand that before you proseed if you don't want any ill ramifications.