That's great, you must have gone through a lot of work to get to this point! I once went down the line of spectroscopy. Bought a book and tried to understand how I could do it. I started trying to make my own spectrascope (not wanting to fork out the $$$$ for a real one), from a Cokin rainbow filter and so on. Didn't get far, eventually gave up. It was a huge steep learning curve which I just couldn't climb. Chose a different steep learning curve instead
I have high respect for amateurs who do manage to achieve accurate spectra results
