So about 160 to fix it. Frankly I can see why you want to jury rig it. There is no exact guide on how to do this. I've seen hinges glued on as well as rigid systems that turn it into a desktop.
Maybe ebay it off for what you can get for parts and look at refurbs like https://www.newegg.com/Product/Product.aspx?Item=9SIA95Z6K49119 which is an i5 and 240ish bucks.