This puzzle is above my pay grade, but I'm glad I have something to submit. While my solution does pull a regent every two cycles, my allocation of quicksilver is super weak. Ideally, you'd want to use the purification glyph until silver, and only then use the quicksilver to get gold. This would significantly cut down on the reagents needed to make a product, but I couldn't be bothered to figure it out. 

I like theory crafting for rate puzzles, but apparently solving them isn't for me. I bet with enough time, I could have gotten a cleaner solution that hits my elegance threshold, but for now, I have this mess

Enjoy?