Now that is a steal! I paid $5,250 for mine in April of 2015, but it was brand new with 0 miles at a dealer. I would have gone for yours if it had been available then.
Nice! I have a '13 which is the same as yours except with a red frame. I like your mods. Personally I hate the way the stock front turns look, but like the LED option you chose. At least it updates the look. I went with Motodynamic LED's to give it the flush mount look.
Simple Green is good stuff or any degreaser you can find at the auto parts store(I use Greased Lightening diluted in a spray bottle). Just don't let it dry on the motor as it can streak.