Ultimate Crypto-mining factory design?

Think about this awesome idea.

1. Buy cheap forest land, for example in Siberia.
2. Build a big industrial hall with wood-powerplant producing heat and electricity in the middle (look up VOLTER power station)
3. The walls of the building are covered with computers mining cryptocurrencies
4. The outer wall is made of Stirling-engines, which produce electricity on the basis of heat differential between inside and outside
5. -30 celsius in winter
6. All the wood comes from your own dirt cheap land
7. PROFIT!