It's probably a good idea to test all the wires, but I'm a little too impatient for that. All off the wires looked good when I took the old heat shrink off them and the electrical tape protected them pretty well. I guess the proof will be when I try to reconnect all of those wires. Unfortunately, I'm colorblind, and the colors of the wires at the connectors are pretty faded. Should be fun.
I do plan on covering them with heat shrink between the bars and the headlight. The electrical tape WILL eventually just fall off. I wanted to cover the entire length in new heat shrink, but I couldn't find long lengths at any local stores/shops. The harley dealer said he had some in his shop but he couldn't sell it to me. A$$hole. I did find a roll at pep boys, but it was pink. I just couldn't do it.