Buying a New Laptop Motherboard

I am helping a person with a broken laptop (with a computer shop as a middleman). I have already gone through the steps to troubleshoot a machine that does not post. I did not have a spare cpu for this Gateway TA1. So now I am left with a dead brick hat has either a bad CPU or Motherboard.
 
I assume the CPU is good, because I have discovered exactly two bad CPUs in my entire history of computer repair, and never a mobile CPU. CPUs are all one solid piece with no moving parts and they are all tested after they leave Intel’s or AMD’s factories. While motherboards frequently have components with liquid in them such a capacitors; I imagine that some even have moving parts built directly into them, like mechanical relays. Anecdotally I have seen over a hundred broken motherboards, believe them to be frail, and I have never heard a QA stories about motherboards like those of CPU manufacturers. I have no other evidence to base this claim on and I will be sorely disappointed when I get the new motherboard and it still doesn’t work, but I think this is highly unlikely.
 
For situations like this I wish I had unfettered access to a giant spare parts warehouse. I checked with my favourite laptop parts supplier first because they usually have everything, even if they charge a premium for it. They had no motherboards for a Gateway TA1. So I pull up Google shopping and see what is available.
 
Only four and three of them are ebay. I have shopped with Laptop-Aid they seem pretty good, but the auction ended. The other is twice the price and the wrong model number (it cxnbsp;2600 on it, this laptop has no stickers saying that). The last ebay auction is only the hard drive cover. From a group called Notebooks r Us I have never heard of, there is a chance it can be purchased for a mere $229. Holy crap this machine isn’t worth that much. Whatever, it is still under computer shop warranty, not my place to decide. I will just pass the bad news onto the person who does the ordering.
 
I was expecting this little adventure to be more interesting. Usually finding motherboard models numbers is harder than googling the model name of the computer(I used “gateway ta1 motherboard”). Every once in a while you get lucky though. Frequently the ‘Ordering a new part’ process for a laptop involves stripping it down halfway and googling the obscure numbers on a dozen different stickers, cross-referencing multiple web stores to determine which part is more likely, and three consecutive nights of prayer to Haruhi Suzumiya, Ted Stevens or your favourite internet deity, then maybe you will get the right part. This is the first time I was disappointed with how easy it was.