These days construction is much improved with the right tools. 3 months is standard now if you start from scratch.
But key is to have the location in place and ready. As you know most stocks run simply on forward looking statements of a business plan (ANDI was projected 100M in revs by end of last year (biggest scam ever) but the stock ran to nearly .04 simply in anticipation of the product)
Once the acquisition is announced, their market cap is instantly realized by the asset they now own.