Why not make an offer now? The worst they can say is no, without countering.
I had that situation with a contract at another home resort, where the broker told me that the seller had to sell at $X per point in order not to lose money. It was maybe $5 higher than my offer point, so I said thank but I'll keep an eye out for a different contract. Shortly after that it was showing as "offer accepted," and I thought, "good for them!" A month later, the broker called me back and said the prior deal fell through, and the sellers were willing to be more flexible, was I still interested?
With international sellers, one big plus is that the contract is very unlikely to get ROFR'd, but one big negative is it will take longer to close, even if it passes ROFR quickly. If you are not in a huge hurry, you can get good deals that way, since many buyers don't want to wait. so why not get the process started?