Nice work so far! Also in reference to your sticky/unresponsive climate control buttons it is normal. The limiteds have the digital climate controls and they are very finicky. I have to press mine hard at times and sometimes they don't work at all. Shawn's suggestion was for the a/c heater controls like in your sport. I wouldn't spray anything into the climate control as it might short circuit the system. There are people/companies that can fix the refurbish the climate controls for around $150 if you want. There was a thread about it a few weeks ago.
Thanks! Yea it's the digital controls on the Limited that are finicky, mine work just fine. If it wasn't such a job I would probably just replace the digital stuff with the manual controls.... I'm a KISS kind of person believe it or not.