Expenses to consider for new STR?

[Nik Moushon]

I'm am running number on a property that I am looking at buying and building a small cabin on. My plans for the cabin are to be used by the family and be a STR when we are not using it (80% of the time). So half the time its a personal property and half the time its an investment property. So I don't need this property to make a TON of cash...even a small loss is fine. At this time I don't plan on getting into STR as a full business or investment route (maybe in the future...maybe).

Anyways, I need some help trying to figure out what the list of expenses are going to be to run this in peak season as a STR. And on some of them, how to I find out what those costs? 

• Mortgage (easy to find out)
• Property Taxes (easy to find out)
• Insurance (easy to find out)
• Utilities (How do you guess for these when first starting out? 150% of your personal homes usage?)
• Cleaning Fees (Is this typically back charged to the renter through AirBnB?)
• Supplies (How to you gauge how much you will need to spend a month? Beside the obvious items, k-cups, TP, paper towels...what else are considered supplies?)
• CapEx & Maint. (Is 1% enough for you or do you more or less?)

The location is very close to my home. So I will be doing the managing and any maintenance stuff (fixes or lawn care).