Any chance of finding a MBP 17" 2009 motherboard?

Hello iFixit,

I have a 6 year old MBP laptop here that I have been using since I got this new, but now it has some serious problems I need to fix

Firstoff, the motherboard has busted SMD level parts because the solder has failed on these parts, and the fan controller no longer speeds up manually with smcfancontrol anymore, since that was one of my tricks to get around the fan controller issues

The other problem is the fans no longer stop in sleep mode-which I have confirmed is because of the motherboard in this laptop, so it will overheat now in sleep mode

I also lost the battery to a bulge issue, so I need a new battery(which I asked about in the past, but I found out iFixit doesn't have a 17" battery anymore), so I cannot use it as a laptop anymore

The hard drive has issues(meh, minor issue) and the DVD drive is shot(I have a external DVD drive now)

Does iFixit have the motherboard for this machine? I already know I would also be best junking the Chinese power supply that my dad bought, because it basically ruined the laptop should I attempt the repair or is it so hard to find parts for these machines it's at the point I should just write it off responsibly and get a new(er) machine? I say new(er) because I am considering a refurbished or NOS 3rd gen core i series business class laptop since Apple decided to solder the RAM and use a nonstandard SSD in the new MacBook Pro