A reasonable goal. However, building one bike from parts doesn't really do that much to stop the head scratching. It helps but it doesn't stop it. You need much more practice than that to become proficient at solving problems that occur. Your build will be a good start but it's only a start.

...And expect a lot of failures along the way. I have a couple of quotes I use. First, "the difference between a beginning mechanic and a master mechanic is the value of all the parts they have ruined". Second, "no one whoever got straight A's in school learned a damned thing". Expect to make a lot of mistakes but learn from each and every one.