In MistroO's post re: "Success comes from iron will", it states...

In MistroO's post re: "Success comes from iron will", it states that they are at the feasibility study stage with the iron ore. Does anyone know how long it takes from the feasibility stage to when they actually start production? Also, does a contract need to be in place to sell the iron ore before any development works start?
Is this something that gets done quickly????