Answer to "Can the screen be replaced?"FYI, my local Mac indie store quoted me a price of $500 for the entire repair. So maybe a way to go, presuming that a new screen is required, is to hunt down local specialists beyond the Apple Store or Apple directly.
Answer to "Display frame cracked (not actual lcd or protective glass)"I am about to try JB Weld. It's too late to save my bezel -- but the glass liner peeling away actually makes it easier to get to the frame part and clamp it with a C-clamp. Do I think it will hold? No. But the only alternative I've heard is to get a repair costing upwards of $500. Given the age of the MBP, I'd rather invest $500 in a used 2011 or 2012 era machine and not risk this happening all over again. You're right, the engineer who indicated the drill holes -- probably some guy in China looking to save RMB -- obviously never designed a laptop in his or her life.