It is as fantatic as the price is low of course.
You can make easily a million dollar with a bar/guesthouse in KOW: start with 2 million !!
Why would they sell if its so fantastic, if i was in that situation, i would slow down a lot, close more days and get more staff that you have more time for yourself, and put a good manager. But its very complicated to balance between good money, and more time for yourself !!

I stayed there back in 2017. Was lovely.

What are the odds of the lease being extended at anything like the current rate?

I have been there also in 15 and 16, just for a meal, nice place. No idea how is Kampot now, and if there is a market for those price-range. When i went it was also pretty empty, but thats long time ago. No idea who runs the place, i thaugt Finish peolple as the name could sound finish, but just found out what it really means/is, hahaha, had to laugh with myself tbh !! If i would have a good running business, its ofcourse also about the numbers, if you dont need anymore the money, you can put a good manager in and pay him good, and then see if the balance is still positive. But ofcourse, if you can sell it for good money, better for you. I remember a riverside place who had several share-holders (in PP) and the main shareholdr had sold his part to another-one (from his country) who hardley knew KOW. One of the main staff told me: I have no idea what numbers they showed to him that he payed "xx" for this shares while its 10 months a year losing money. The one who sold his shares is still laughing i think now. And the one who bought is back to his country longtime ago already !!