Minor update:
I bought some 50 grit sand paper sheets to use on my palm sander. What a great move that was. Because of the way I finished the trim, there were a lot of areas where I used red oak colored wood putty to fill some gaps and all of the trim nail holes. There were also a number of uneven areas where some wood was a little bit higher than desired. I was a little worried about this as I didn't want to spend the rest of my life sanding. I hit these high areas with the 50 grit sandpaper, and it came out great. I am very satisfied with the results!
The only things that are outstanding at this point are to sand with a finer grit sandpaper to get it ready before finishing with stain and poly urethane, and the doors. I’ll probably finish the doors next and all of the final sanding. Once that’s complete, I'll move onto the canopy and then finish them together.