Know you believe what you typed or you would not have typed it ... I too believe what I typed and type. One never knows what is impossible and what is possible but then from where I come from was a motto that was lived by all my life and those surrounding me ... You want the possible? Here it is. You want the impossible? I'll need twenty-four hours. Not disagreeing with you. Am simply saying I never count people out in a crisis. Fully believe ... Anything is Possible. Just have to have the proper plan. Humans have a tendency to want to survive and survive in peace. May not happen but that is not going to change what humans want. Survive, Peace ... two powerful motivators. and will agree both are never attained for forever. Temporary survival. Temporary Peace. But that does not mean should not be strived for, does it?
If it was a fast-paced project, it would take a decade at least. It took several decades at normal work paces while the existing infrastructure was built.
If it magically rained all the right equipment and materials, and it all landed in the right spot, the amount of gas required to replace all that Russia now sells to Europe could not be produced for this winter. Where would the gas come from?
Anything is Possible. Just have to have the proper plan.
In the real world, it requires: cost, schedule and quality. Pick any two of those and I'll tell you the result for the third. And yes, non-functioning is a quality.