I like your work. I just joined Steemit, and just posted my article on Bitcoin's intrinsic value.

• https://steemit.com/cryptocurrency/@slowblogger/the-price-and-value-of-cryptocurrency-1-is-bitcoin-a-fraud

I also use the equation of exchange. Mine is essentially more refined version of yours, including exchange rate calculation. I think yours will work well enough as a ball-park valuation, and is more practical for many people.