Square/Box design of 70 x 90, 75 x 95 or 80 x 100, are the approximate dimensions.

For furnishing short- or mid-term rentals, finding the right balance between stuff that looks good, but which also offers solid durability and keeps your budget in check can be difficult.If your budget is your driving factor with your design decisions, I'd start surfing on Google image search or Pinterest - find a picture of a finished room that you like, and then reverse engineer it from products on Amazon and other similar budget-friendly sources.

every person who builds a house or a commercial building has to do so with 25% equity to get it financed with a bank. there is absolutely value in new construction. the hard part becomes making sure your architect knows how to design a building that can make money. but saying you don't know how to is a little silly it's the same idea as existing but ground up you just study the market and look at land more than you do anything else. you can build a house anywhere but you want to do it in better areas. it's either than or higher density's smaller floorplans, etc 

Our educational system is designed to create material soldiers, not free people.  

Please note the information provided below is a layman's definition designed to provide a basic understanding for the general audience.

My main goal is to identify an opportunity that can be scaled from a couple of spots to a dozen, to several dozen eventually without the need to completely re-design or re-engineer the layout without respect to providing utilities. 

I have quite a few clients who self manage their vacation rentals from the mainland.Here is info directly off state of Hawaii website pertaining to vacation rentals (bold in mine):  If you’re off-island, you’ll need to designate a local contact who resides on the same island as the transient accommodation.

BiggerPockets is full of resources designed to help you along your journey, whether you are just getting started or a seasoned investor.

@Jagan ReddyI'm not a CPA or a cost segregation specialist, but I do know that if you are not designated as a  real estate professional, then you can only offset passive income by your passive losses.Qualifying as a real estate professional is more challenging than most people want you to think.

And since you are out of state you will need to be open to suggestion on design, size, etc.