I was a dealer when these planes first came out. They fly great. The radio is solid.
First thing to throw away the batteries and the charger.
You can get new batteries and charger from Towerhobbies.
WD40 will loosen up the engine.
Now for the hole. These early planes used a sticky back covering. None of the current covering will stick to it. The best thing is clear pa king tape.

Remember this plane is to learn to fly. What it looks like is not important.

Have fun learning and get help at one of the local clubs.

Dennis
.