I'm actually looking for a backlit SP as well. Forget eBay. Everyone on there thinks they are gold plated. If I ever decide to part with my Twilight Princess I will let you know. Keep an eyeout for Super Mario Allstars wii fir me. That one fetches a pretty penny on eBay too. I swear some of those idiots are on crack.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi