I've read the first 15 or so pages and the last 80 or so. What a journey. This is actually a very inspiring thread as I can see many similar tendencies in myself... "I can't throw this away, it costs a bunch of money new!" or "Wow, this thing at auction would be a great project that I'll never get to in my lifetime, I'll buy it!" It is really great that you have the strength of character to share your struggles in such a public media, because it helps people like me recognize traits that perhaps we weren't necessarily consciously aware of. So, thank you.
Also, Strouty, I hope that you do take the many compliments from these forum members seriously. A month or two ago when you restarted your work organizing the shelving many people were complimenting how your starting point didn't look half bad, especially in comparison to a year or two ago. You were obviously not happy about the starting point and made it known. I can relate; as an educator I'm constantly watching people grow and develop new skills/abilities over time. Many times as my students develop better ears and gain knowledge to see a bigger picture, they are overcome with the knowledge that they have such a long way to go before they "get there" vocally, and they lose sight of how good they are RIGHT NOW. Sure, they have room to grow and they shouldn't give up, nor should they become big-headed and think they have nothing left to learn, but it is healthy to look at yourself and say "hey, I've worked my tail off and I've improved a bunch!" That can help keep you motivated to continue your journey, instead of being mired in the fear that you will never reach your potential. I have seen students give up music because of the fear that they would never be good enough.
Does your shop need reorganizing? Well, it is your shop and you say it does, so that answers that! Does the fact that you want to reorganize diminish what you have accomplished so far? Certainly not, and you should be proud of and celebrate your accomplishments. Good job.