For me it depends on what the Chilean government will bring to the partnership.
We already have a defined resource that is slated to be exploited over two stages, but if the government were to contribute to the partnership by granting more leases to LPI, then the price could be significantly north of the $1.20usd ($830m USD) / $1.80aud ($1.24B aud) price that
@Arcpro suggested.
Given the quality of the product, and the potential of the region, along with a government sending strong signals to the market that "they are open for business", I think things could get quite frothy.
The full permitting and shovel ready nature will mean that time for a return on investment could / should be much quicker compared to other project / companies that are suitable for takeover. This could potentially add a premium to any sale price.
Would companies pay a 10% premium to be making money in 2 years rather than 5 years? Would some companies pay more than a 10% premium? I think so.
There are a lot of things to consider.
A $2.40aud share price (my absolute max estimate) is a $1.65B AUD market cap, or $1.1B USD.
Time will tell.