The Gamepad is easily enough opened and and faceplate can be changed. iFixit has a guide here. It does require some special drivers to open the case. First, you should call Nintendo, be nice, and see if they can help you out with a gamepad. I bet you they've got some faceplates and gamepads lying around. eBay has many auctions for Zelda gamepads. Search "zelda gamepad only"
Perhaps you've done this already, but before you go about figuring out how to replace an HDMI port, you should determine if 1) the HDMI cable is faulty (do you have another known-good HDMI cable, perhaps from a DVD or BluRay player to use?) 2) the TV HDMI input is working correctly (does changing the input on your TV to another HDMI port work?)
Hi Ray, I don't own a drone of this type, however I have repaired stripped out plastic screw holes in my time! For my recommendation, I'm assuming that the screw holes on the drone are the ones that are stripped and cannot be tightened up. To repair the holes to make sure you can still replace the legs and keep that functionality, I would recommend trying a process similar to this YouTube video. He uses the original screws, covers them in Teflon tape, fills the stripped hole with a plastics epoxy, and while the glue is wet, puts the screw in to essentially mold a screw hole. You let the epoxy dry while the Teflon-tape wrapped screw is in the hole, then take the screw out with a driver and you should be good to go.
Hi Turgay, iFixit DOES sell replacement logic boards and has a replacement guide for an iPhone 6 Plus logic board right here. It is not cheap, but probably about half the cost of a brand new phone for you if you can repair it correctly.