"Hard part is done?"
Well yeah, It is fun but also the most stressful part. While I have not fully restored a car, I did do a full paint correction and polish, buff, wax, clay bar, everything on my truck when I first got it. What I did not think about was having to install the new grill and window trim I got. That was the most stressful afternoon of my life. I just repeated; don't scratch it, don't scratch it, don't scratch it.... but hey, it looked great after I was done.