LOL, if your trimming acrylic on the door then your much closer to that step than you think. Sometimes steps seem distant but before you know it a couple hours later your finished with the part. Those are the times that you realize the build process is gratifying from start to finish. Kitplane magazine had an article once that reminds you to not go into the shop saying "Im building an airplane". When you continuously come out without an airplane youll become discouraged. I live the process of building parts/assy's etc. I am frequently pleased with a days work.
Eddie