Repairs and Maintenance are not cheap and shipping carpet/furniture/etc to Hawaii calls for huge price premium so I would be sure keep a reserve for replacements.  

In the backyard, what was previously grass and concrete was completely transformed into a lush vacation oasis, complete with a luxury pool, expansive deck, custom mural, chic furniture and hot tub for the ultimate tropical experience.

Purchase price: $326,000 Cash invested: $19,900 Sale price: $460,000 Basement was already set up as another unit, so I bought furniture and converted it to an Airbnb while living upstairs.

https://www.biggerpockets.com/airbnb-calculatorI would not go cheap on the furniture and really pay attention to the design and amenities you can have that compete with the top places near by.

I made above market rate rent over 2 years and I vaguely can deduct how much they grossed and they were probably negative cashflow a little as the business became less lucrative but with all the nice furniture they invested, it should be either breakeven or lost money.

There will most likely need to be updates to some of the furniture and probably the linens.

In many resort areas, there are furniture/case goods retailers that will handle all of this for you.

Do you know what they would be doing about furniture? 

For a great offer, you throw in the furniture if they want to keep doing the MTR.

I still have not received furniture pieces that I paid for back in September of last year.