This is mind-blowing. Can you point to any resources on how to do this? Also, where’d you sell the components? eBay?
Ebay is the best place to sell parts, yes. Prepare for some shrinkage as it's easy to scam new Ebay sellers.
Usually you just need a special screwdriver ($2-3 or so from eBay from Asia).
Ship everything in anti-static bags and reused Amazon packaging.